927 lines
37 KiB
R
927 lines
37 KiB
R
# Mixed ANOVA Analysis for Domain Means - EOHI2
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# EOHI Experiment Data Analysis - Domain Level Analysis with INTERVAL factor
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# Variables: NPast_5_pref_MEAN, NPast_5_pers_MEAN, NPast_5_val_MEAN, etc.
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# NFut_5_pref_MEAN, NFut_5_pers_MEAN, NFut_5_val_MEAN, etc.
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# NPast_10_pref_MEAN, NPast_10_pers_MEAN, NPast_10_val_MEAN, etc.
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# NFut_10_pref_MEAN, NFut_10_pers_MEAN, NFut_10_val_MEAN, etc.
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# 5.10past_pref_MEAN, 5.10past_pers_MEAN, 5.10past_val_MEAN
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# 5.10fut_pref_MEAN, 5.10fut_pers_MEAN, 5.10fut_val_MEAN
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# Load required libraries
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library(tidyverse)
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library(ez)
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library(car)
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library(afex) # For aov_ez (cleaner ANOVA output)
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library(nortest) # For normality tests
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library(emmeans) # For post-hoc comparisons
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library(purrr) # For map functions
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library(effsize) # For Cohen's d calculations
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library(effectsize) # For effect size calculations
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# Global options to remove scientific notation
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options(scipen = 999)
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# Set contrasts to sum for mixed ANOVA (necessary for proper interpretation)
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options(contrasts = c("contr.sum", "contr.poly"))
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setwd("C:/Users/irina/Documents/DND/EOHI/eohi2")
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# Read the data
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data <- read.csv("eohi2.csv")
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# Display basic information about the dataset
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print(paste("Dataset dimensions:", paste(dim(data), collapse = " x")))
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print(paste("Number of participants:", length(unique(data$ResponseId))))
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# Verify the specific variables we need
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required_vars <- c("NPast_5_pref_MEAN", "NPast_5_pers_MEAN", "NPast_5_val_MEAN",
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"NPast_10_pref_MEAN", "NPast_10_pers_MEAN", "NPast_10_val_MEAN",
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"NFut_5_pref_MEAN", "NFut_5_pers_MEAN", "NFut_5_val_MEAN",
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"NFut_10_pref_MEAN", "NFut_10_pers_MEAN", "NFut_10_val_MEAN",
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"X5.10past_pref_MEAN", "X5.10past_pers_MEAN", "X5.10past_val_MEAN",
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"X5.10fut_pref_MEAN", "X5.10fut_pers_MEAN", "X5.10fut_val_MEAN")
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missing_vars <- required_vars[!required_vars %in% colnames(data)]
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if (length(missing_vars) > 0) {
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print(paste("Warning: Missing variables:", paste(missing_vars, collapse = ", ")))
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} else {
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print("All required domain mean variables found!")
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}
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# Define domain mapping with TIME, DOMAIN, and INTERVAL factors
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domain_mapping <- data.frame(
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variable = required_vars,
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time = c(rep("Past", 3), rep("Past", 3), rep("Future", 3), rep("Future", 3),
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rep("Past", 3), rep("Future", 3)),
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domain = rep(c("Preferences", "Personality", "Values"), 6),
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interval = c(rep("5", 3), rep("10", 3), rep("5", 3), rep("10", 3),
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rep("5_10", 3), rep("5_10", 3)),
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stringsAsFactors = FALSE
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)
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print(domain_mapping)
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# Efficient data pivoting using pivot_longer
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long_data <- data %>%
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select(ResponseId, TEMPORAL_DO, INTERVAL_DO, all_of(required_vars)) %>%
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pivot_longer(
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cols = all_of(required_vars),
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names_to = "variable",
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values_to = "MEAN_DIFFERENCE"
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) %>%
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left_join(domain_mapping, by = "variable") %>%
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# Convert to factors with proper levels
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mutate(
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TIME = factor(time, levels = c("Past", "Future")),
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DOMAIN = factor(domain, levels = c("Preferences", "Personality", "Values")),
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INTERVAL = factor(interval, levels = c("5", "10", "5_10")),
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ResponseId = as.factor(ResponseId),
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TEMPORAL_DO = as.factor(TEMPORAL_DO),
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INTERVAL_DO = as.factor(INTERVAL_DO)
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) %>%
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# Select final columns and remove any rows with missing values
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select(ResponseId, TEMPORAL_DO, INTERVAL_DO, TIME, DOMAIN, INTERVAL, MEAN_DIFFERENCE) %>%
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filter(!is.na(MEAN_DIFFERENCE))
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print(paste("Long data dimensions:", paste(dim(long_data), collapse = " x")))
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print(paste("Number of participants:", length(unique(long_data$ResponseId))))
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# =============================================================================
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# DESCRIPTIVE STATISTICS
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# =============================================================================
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# Overall descriptive statistics by TIME, DOMAIN, and INTERVAL
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desc_stats <- long_data %>%
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group_by(TIME, DOMAIN, INTERVAL) %>%
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summarise(
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n = n(),
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mean = round(mean(MEAN_DIFFERENCE, na.rm = TRUE), 5),
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variance = round(var(MEAN_DIFFERENCE, na.rm = TRUE), 5),
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sd = round(sd(MEAN_DIFFERENCE, na.rm = TRUE), 5),
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median = round(median(MEAN_DIFFERENCE, na.rm = TRUE), 5),
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q1 = round(quantile(MEAN_DIFFERENCE, 0.25, na.rm = TRUE), 5),
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q3 = round(quantile(MEAN_DIFFERENCE, 0.75, na.rm = TRUE), 5),
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min = round(min(MEAN_DIFFERENCE, na.rm = TRUE), 5),
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max = round(max(MEAN_DIFFERENCE, na.rm = TRUE), 5),
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.groups = 'drop'
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)
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print(desc_stats)
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# Descriptive statistics by between-subjects factors
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desc_stats_by_between <- long_data %>%
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group_by(TEMPORAL_DO, INTERVAL_DO, TIME, DOMAIN, INTERVAL) %>%
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summarise(
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n = n(),
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mean = round(mean(MEAN_DIFFERENCE, na.rm = TRUE), 5),
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variance = round(var(MEAN_DIFFERENCE, na.rm = TRUE), 5),
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sd = round(sd(MEAN_DIFFERENCE, na.rm = TRUE), 5),
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.groups = 'drop'
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)
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print(desc_stats_by_between)
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# Summary by between-subjects factors only
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desc_stats_between_only <- long_data %>%
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group_by(TEMPORAL_DO, INTERVAL_DO) %>%
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summarise(
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n = n(),
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mean = round(mean(MEAN_DIFFERENCE, na.rm = TRUE), 5),
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variance = round(var(MEAN_DIFFERENCE, na.rm = TRUE), 5),
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sd = round(sd(MEAN_DIFFERENCE, na.rm = TRUE), 5),
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.groups = 'drop'
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)
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print(desc_stats_between_only)
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# =============================================================================
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# ASSUMPTION TESTING
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# =============================================================================
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# Remove missing values for assumption testing
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long_data_clean <- long_data[!is.na(long_data$MEAN_DIFFERENCE), ]
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print(paste("Data after removing missing values:", paste(dim(long_data_clean), collapse = " x")))
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# 1. Missing values check
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missing_summary <- long_data %>%
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group_by(TIME, DOMAIN, INTERVAL) %>%
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summarise(
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n_total = n(),
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n_missing = sum(is.na(MEAN_DIFFERENCE)),
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pct_missing = round(100 * n_missing / n_total, 2),
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.groups = 'drop'
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)
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print(missing_summary)
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# 2. Outlier detection
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outlier_summary <- long_data_clean %>%
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group_by(TIME, DOMAIN, INTERVAL) %>%
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summarise(
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n = n(),
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mean = mean(MEAN_DIFFERENCE),
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sd = sd(MEAN_DIFFERENCE),
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q1 = quantile(MEAN_DIFFERENCE, 0.25),
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q3 = quantile(MEAN_DIFFERENCE, 0.75),
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iqr = q3 - q1,
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lower_bound = q1 - 1.5 * iqr,
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upper_bound = q3 + 1.5 * iqr,
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n_outliers = sum(MEAN_DIFFERENCE < lower_bound | MEAN_DIFFERENCE > upper_bound),
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.groups = 'drop'
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)
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print(outlier_summary)
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# 3. Anderson-Darling normality test
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normality_results <- long_data_clean %>%
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group_by(TIME, DOMAIN, INTERVAL) %>%
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summarise(
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n = n(),
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ad_statistic = ad.test(.data$MEAN_DIFFERENCE)$statistic,
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ad_p_value = ad.test(.data$MEAN_DIFFERENCE)$p.value,
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.groups = 'drop'
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)
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# Round only the numeric columns
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normality_results_rounded <- normality_results %>%
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mutate(across(where(is.numeric), ~ round(.x, 5)))
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print(normality_results_rounded)
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# 4. Homogeneity of variance (Levene's test)
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# Test homogeneity across TIME within each DOMAIN × INTERVAL combination
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homogeneity_time <- long_data_clean %>%
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group_by(DOMAIN, INTERVAL) %>%
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summarise(
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levene_F = leveneTest(MEAN_DIFFERENCE ~ TIME)$`F value`[1],
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levene_p = leveneTest(MEAN_DIFFERENCE ~ TIME)$`Pr(>F)`[1],
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.groups = 'drop'
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)
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print(homogeneity_time)
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# Test homogeneity across DOMAIN within each TIME × INTERVAL combination
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homogeneity_domain <- long_data_clean %>%
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group_by(TIME, INTERVAL) %>%
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summarise(
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levene_F = leveneTest(MEAN_DIFFERENCE ~ DOMAIN)$`F value`[1],
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levene_p = leveneTest(MEAN_DIFFERENCE ~ DOMAIN)$`Pr(>F)`[1],
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.groups = 'drop'
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)
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print(homogeneity_domain)
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# Test homogeneity across INTERVAL within each TIME × DOMAIN combination
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homogeneity_interval <- long_data_clean %>%
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group_by(TIME, DOMAIN) %>%
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summarise(
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levene_F = leveneTest(MEAN_DIFFERENCE ~ INTERVAL)$`F value`[1],
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levene_p = leveneTest(MEAN_DIFFERENCE ~ INTERVAL)$`Pr(>F)`[1],
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.groups = 'drop'
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)
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print(homogeneity_interval)
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# 5. Hartley's F-max test for between-subjects factors
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# Check what values the between-subjects factors actually have
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print(unique(long_data_clean$TEMPORAL_DO))
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print(unique(long_data_clean$INTERVAL_DO))
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# Function to calculate Hartley's F-max ratio
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calculate_hartley_ratio <- function(variances) {
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max(variances, na.rm = TRUE) / min(variances, na.rm = TRUE)
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}
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# Hartley's F-max test across TEMPORAL_DO within each TIME × DOMAIN × INTERVAL combination
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observed_temporal_ratios <- long_data_clean %>%
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group_by(TIME, DOMAIN, INTERVAL) %>%
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summarise(
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# Calculate variances for each TEMPORAL_DO level within this combination
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past_var = var(MEAN_DIFFERENCE[TEMPORAL_DO == "01PAST"], na.rm = TRUE),
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fut_var = var(MEAN_DIFFERENCE[TEMPORAL_DO == "02FUT"], na.rm = TRUE),
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# Calculate F-max ratio
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f_max_ratio = max(past_var, fut_var) / min(past_var, fut_var),
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.groups = 'drop'
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) %>%
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select(TIME, DOMAIN, INTERVAL, past_var, fut_var, f_max_ratio)
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print(observed_temporal_ratios)
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# Hartley's F-max test across INTERVAL_DO within each TIME × DOMAIN × TEMPORAL_DO combination
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observed_interval_ratios <- long_data_clean %>%
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group_by(TIME, DOMAIN, TEMPORAL_DO) %>%
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summarise(
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# Calculate variances for each INTERVAL_DO level within this combination
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int5_var = var(MEAN_DIFFERENCE[INTERVAL_DO == "5"], na.rm = TRUE),
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int10_var = var(MEAN_DIFFERENCE[INTERVAL_DO == "10"], na.rm = TRUE),
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# Calculate F-max ratio
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f_max_ratio = max(int5_var, int10_var) / min(int5_var, int10_var),
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.groups = 'drop'
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) %>%
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select(TIME, DOMAIN, TEMPORAL_DO, int5_var, int10_var, f_max_ratio)
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print(observed_interval_ratios)
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# =============================================================================
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# MIXED ANOVA ANALYSIS
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# =============================================================================
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# Check data dimensions and structure
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print(paste("Data size for ANOVA:", nrow(long_data_clean), "rows"))
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print(paste("Number of participants:", length(unique(long_data_clean$ResponseId))))
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print(paste("Design factors: TIME (", length(levels(long_data_clean$TIME)), "), DOMAIN (",
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length(levels(long_data_clean$DOMAIN)), "), INTERVAL (",
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length(levels(long_data_clean$INTERVAL)), "), TEMPORAL_DO (",
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length(levels(long_data_clean$TEMPORAL_DO)), "), INTERVAL_DO (",
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length(levels(long_data_clean$INTERVAL_DO)), ")", sep = ""))
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# Check for complete cases
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complete_cases <- sum(complete.cases(long_data_clean))
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print(paste("Complete cases:", complete_cases, "out of", nrow(long_data_clean)))
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# Check if design is balanced
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design_balance <- table(long_data_clean$ResponseId, long_data_clean$TIME, long_data_clean$DOMAIN, long_data_clean$INTERVAL)
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if(all(design_balance %in% c(0, 1))) {
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print("Design is balanced: each participant has data for all TIME × DOMAIN × INTERVAL combinations")
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} else {
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print("Warning: Design is unbalanced")
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print(summary(as.vector(design_balance)))
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}
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# =============================================================================
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# MIXED ANOVA WITH SPHERICITY CORRECTIONS
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# =============================================================================
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# Mixed ANOVA using ezANOVA with automatic sphericity corrections
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# Between-subjects: TEMPORAL_DO (2 levels: 01PAST, 02FUT) × INTERVAL_DO (2 levels: 5, 10)
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# Within-subjects: TIME (2 levels: Past, Future) × DOMAIN (3 levels: Preferences, Personality, Values) × INTERVAL (3 levels: 5, 10, 5_10)
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mixed_anova_model <- ezANOVA(data = long_data_clean,
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dv = MEAN_DIFFERENCE,
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wid = ResponseId,
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between = .(TEMPORAL_DO, INTERVAL_DO),
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within = .(TIME, DOMAIN, INTERVAL),
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type = 3,
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detailed = TRUE)
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anova_output <- mixed_anova_model$ANOVA
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rownames(anova_output) <- NULL # Reset row numbers to be sequential
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print(anova_output)
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# Show Mauchly's test for sphericity
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print(mixed_anova_model$Mauchly)
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# Show sphericity-corrected results (Greenhouse-Geisser and Huynh-Feldt)
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if(!is.null(mixed_anova_model$`Sphericity Corrections`)) {
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print("\nGreenhouse-Geisser and Huynh-Feldt Corrections:")
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print(mixed_anova_model$`Sphericity Corrections`)
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# Extract and display corrected degrees of freedom
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print("\n=== CORRECTED DEGREES OF FREEDOM ===")
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sphericity_corr <- mixed_anova_model$`Sphericity Corrections`
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anova_table <- mixed_anova_model$ANOVA
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corrected_df <- data.frame(
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Effect = sphericity_corr$Effect,
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Original_DFn = anova_table$DFn[match(sphericity_corr$Effect, anova_table$Effect)],
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Original_DFd = anova_table$DFd[match(sphericity_corr$Effect, anova_table$Effect)],
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GG_DFn = anova_table$DFn[match(sphericity_corr$Effect, anova_table$Effect)] * sphericity_corr$GGe,
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GG_DFd = anova_table$DFd[match(sphericity_corr$Effect, anova_table$Effect)] * sphericity_corr$GGe,
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HF_DFn = anova_table$DFn[match(sphericity_corr$Effect, anova_table$Effect)] * sphericity_corr$HFe,
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HF_DFd = anova_table$DFd[match(sphericity_corr$Effect, anova_table$Effect)] * sphericity_corr$HFe,
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GG_epsilon = sphericity_corr$GGe,
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HF_epsilon = sphericity_corr$HFe
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)
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print(corrected_df)
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print("\n=== CORRECTED F-TESTS ===")
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# Between-subjects effects (no sphericity corrections needed)
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print("\nBETWEEN-SUBJECTS EFFECTS:")
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between_effects <- c("TEMPORAL_DO", "INTERVAL_DO", "TEMPORAL_DO:INTERVAL_DO")
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for(effect in between_effects) {
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if(effect %in% anova_table$Effect) {
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f_value <- anova_table$F[anova_table$Effect == effect]
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dfn <- anova_table$DFn[anova_table$Effect == effect]
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dfd <- anova_table$DFd[anova_table$Effect == effect]
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p_value <- anova_table$p[anova_table$Effect == effect]
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print(sprintf("%s: F(%d, %d) = %.3f, p = %.6f", effect, dfn, dfd, f_value, p_value))
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}
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}
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# Within-subjects effects (sphericity corrections where applicable)
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print("\nWITHIN-SUBJECTS EFFECTS:")
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# TIME main effect (2 levels, sphericity automatically satisfied)
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if("TIME" %in% anova_table$Effect) {
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f_value <- anova_table$F[anova_table$Effect == "TIME"]
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dfn <- anova_table$DFn[anova_table$Effect == "TIME"]
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dfd <- anova_table$DFd[anova_table$Effect == "TIME"]
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p_value <- anova_table$p[anova_table$Effect == "TIME"]
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print(sprintf("TIME: F(%d, %d) = %.3f, p = %.6f (2 levels, sphericity satisfied)", dfn, dfd, f_value, p_value))
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}
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# DOMAIN main effect (3 levels, needs sphericity correction)
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if("DOMAIN" %in% anova_table$Effect) {
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f_value <- anova_table$F[anova_table$Effect == "DOMAIN"]
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dfn <- anova_table$DFn[anova_table$Effect == "DOMAIN"]
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dfd <- anova_table$DFd[anova_table$Effect == "DOMAIN"]
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p_value <- anova_table$p[anova_table$Effect == "DOMAIN"]
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print(sprintf("DOMAIN: F(%d, %d) = %.3f, p = %.6f", dfn, dfd, f_value, p_value))
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}
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# INTERVAL main effect (3 levels, needs sphericity correction)
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if("INTERVAL" %in% anova_table$Effect) {
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f_value <- anova_table$F[anova_table$Effect == "INTERVAL"]
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dfn <- anova_table$DFn[anova_table$Effect == "INTERVAL"]
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dfd <- anova_table$DFd[anova_table$Effect == "INTERVAL"]
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p_value <- anova_table$p[anova_table$Effect == "INTERVAL"]
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print(sprintf("INTERVAL: F(%d, %d) = %.3f, p = %.6f", dfn, dfd, f_value, p_value))
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}
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# Interactions with sphericity corrections
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print("\nINTERACTIONS WITH SPHERICITY CORRECTIONS:")
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for(i in seq_len(nrow(corrected_df))) {
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effect <- corrected_df$Effect[i]
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f_value <- anova_table$F[match(effect, anova_table$Effect)]
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print(sprintf("\n%s:", effect))
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print(sprintf(" Original: F(%d, %d) = %.3f",
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corrected_df$Original_DFn[i], corrected_df$Original_DFd[i], f_value))
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print(sprintf(" GG-corrected: F(%.2f, %.2f) = %.3f, p = %.6f",
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corrected_df$GG_DFn[i], corrected_df$GG_DFd[i], f_value, sphericity_corr$`p[GG]`[i]))
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print(sprintf(" HF-corrected: F(%.2f, %.2f) = %.3f, p = %.6f",
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corrected_df$HF_DFn[i], corrected_df$HF_DFd[i], f_value, sphericity_corr$`p[HF]`[i]))
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}
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||
} else {
|
||
print("\nNote: Sphericity corrections not needed (sphericity assumption met)")
|
||
}
|
||
|
||
# =============================================================================
|
||
# EFFECT SIZES (GENERALIZED ETA SQUARED)
|
||
# =============================================================================
|
||
|
||
|
||
|
||
# Extract generalized eta squared from ezANOVA (already calculated)
|
||
effect_sizes <- mixed_anova_model$ANOVA[, c("Effect", "ges")]
|
||
effect_sizes$ges <- round(effect_sizes$ges, 5)
|
||
|
||
print(effect_sizes)
|
||
|
||
# =============================================================================
|
||
# POST-HOC COMPARISONS
|
||
# =============================================================================
|
||
|
||
# Post-hoc comparisons using emmeans
|
||
|
||
|
||
# Create aov model for emmeans (emmeans requires aov object, not ezANOVA output)
|
||
aov_model <- aov(MEAN_DIFFERENCE ~ TEMPORAL_DO * INTERVAL_DO * TIME * DOMAIN * INTERVAL + Error(ResponseId/(TIME * DOMAIN * INTERVAL)),
|
||
data = long_data_clean)
|
||
|
||
# Main effect of TIME
|
||
|
||
time_emmeans <- emmeans(aov_model, ~ TIME)
|
||
|
||
print(time_emmeans)
|
||
|
||
time_contrasts <- pairs(time_emmeans, adjust = "bonferroni")
|
||
print(time_contrasts)
|
||
|
||
# Main effect of DOMAIN
|
||
|
||
domain_emmeans <- emmeans(aov_model, ~ DOMAIN)
|
||
|
||
print(domain_emmeans)
|
||
|
||
domain_contrasts <- pairs(domain_emmeans, adjust = "bonferroni")
|
||
print(domain_contrasts)
|
||
|
||
# Main effect of INTERVAL
|
||
|
||
interval_emmeans <- emmeans(aov_model, ~ INTERVAL)
|
||
|
||
print(interval_emmeans)
|
||
|
||
interval_contrasts <- pairs(interval_emmeans, adjust = "bonferroni")
|
||
print(interval_contrasts)
|
||
|
||
# Main effect of TEMPORAL_DO
|
||
|
||
temporal_emmeans <- emmeans(aov_model, ~ TEMPORAL_DO)
|
||
temporal_contrasts <- pairs(temporal_emmeans, adjust = "bonferroni")
|
||
print(temporal_contrasts)
|
||
|
||
# Main effect of INTERVAL_DO
|
||
|
||
interval_do_emmeans <- emmeans(aov_model, ~ INTERVAL_DO)
|
||
interval_do_contrasts <- pairs(interval_do_emmeans, adjust = "bonferroni")
|
||
print(interval_do_contrasts)
|
||
|
||
# =============================================================================
|
||
# COHEN'S D FOR MAIN EFFECTS
|
||
# =============================================================================
|
||
|
||
|
||
|
||
# Main Effect of TIME (if significant)
|
||
|
||
time_main_contrast <- pairs(time_emmeans, adjust = "none")
|
||
time_main_df <- as.data.frame(time_main_contrast)
|
||
|
||
print(time_main_df)
|
||
|
||
# Calculate Cohen's d for TIME main effect
|
||
if(nrow(time_main_df) > 0) {
|
||
print("\nCohen's d for TIME main effect:")
|
||
time_past_data <- long_data_clean$MEAN_DIFFERENCE[long_data_clean$TIME == "Past"]
|
||
time_future_data <- long_data_clean$MEAN_DIFFERENCE[long_data_clean$TIME == "Future"]
|
||
|
||
time_cohens_d <- cohen.d(time_past_data, time_future_data)
|
||
print(sprintf("Past vs Future: n1 = %d, n2 = %d", length(time_past_data), length(time_future_data)))
|
||
print(sprintf("Cohen's d: %.5f", time_cohens_d$estimate))
|
||
print(sprintf("Effect size interpretation: %s", time_cohens_d$magnitude))
|
||
print(sprintf("p-value: %.5f", time_main_df$p.value[1]))
|
||
}
|
||
|
||
# Main Effect of DOMAIN (if significant)
|
||
|
||
domain_main_contrast <- pairs(domain_emmeans, adjust = "bonferroni")
|
||
domain_main_df <- as.data.frame(domain_main_contrast)
|
||
|
||
print(domain_main_df)
|
||
|
||
# Calculate Cohen's d for significant DOMAIN contrasts
|
||
significant_domain <- domain_main_df[domain_main_df$p.value < 0.05, ]
|
||
if(nrow(significant_domain) > 0) {
|
||
print("\nCohen's d for significant DOMAIN contrasts:")
|
||
for(i in seq_len(nrow(significant_domain))) {
|
||
contrast_name <- as.character(significant_domain$contrast[i])
|
||
contrast_parts <- strsplit(contrast_name, " - ")[[1]]
|
||
if(length(contrast_parts) == 2) {
|
||
level1 <- trimws(contrast_parts[1])
|
||
level2 <- trimws(contrast_parts[2])
|
||
|
||
data1 <- long_data_clean$MEAN_DIFFERENCE[long_data_clean$DOMAIN == level1]
|
||
data2 <- long_data_clean$MEAN_DIFFERENCE[long_data_clean$DOMAIN == level2]
|
||
|
||
if(length(data1) > 0 && length(data2) > 0) {
|
||
domain_cohens_d <- cohen.d(data1, data2)
|
||
print(sprintf("Comparison: %s", contrast_name))
|
||
print(sprintf(" n1 = %d, n2 = %d", length(data1), length(data2)))
|
||
print(sprintf(" Cohen's d: %.5f", domain_cohens_d$estimate))
|
||
print(sprintf(" Effect size interpretation: %s", domain_cohens_d$magnitude))
|
||
print(sprintf(" p-value: %.5f", significant_domain$p.value[i]))
|
||
print("")
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
# Main Effect of INTERVAL (if significant)
|
||
|
||
interval_main_contrast <- pairs(interval_emmeans, adjust = "bonferroni")
|
||
interval_main_df <- as.data.frame(interval_main_contrast)
|
||
|
||
print(interval_main_df)
|
||
|
||
# Calculate Cohen's d for significant INTERVAL contrasts
|
||
significant_interval <- interval_main_df[interval_main_df$p.value < 0.05, ]
|
||
if(nrow(significant_interval) > 0) {
|
||
print("\nCohen's d for significant INTERVAL contrasts:")
|
||
for(i in seq_len(nrow(significant_interval))) {
|
||
contrast_name <- as.character(significant_interval$contrast[i])
|
||
contrast_parts <- strsplit(contrast_name, " - ")[[1]]
|
||
if(length(contrast_parts) == 2) {
|
||
level1 <- trimws(contrast_parts[1])
|
||
level2 <- trimws(contrast_parts[2])
|
||
|
||
data1 <- long_data_clean$MEAN_DIFFERENCE[long_data_clean$INTERVAL == level1]
|
||
data2 <- long_data_clean$MEAN_DIFFERENCE[long_data_clean$INTERVAL == level2]
|
||
|
||
if(length(data1) > 0 && length(data2) > 0) {
|
||
interval_cohens_d <- cohen.d(data1, data2)
|
||
print(sprintf("Comparison: %s", contrast_name))
|
||
print(sprintf(" n1 = %d, n2 = %d", length(data1), length(data2)))
|
||
print(sprintf(" Cohen's d: %.5f", interval_cohens_d$estimate))
|
||
print(sprintf(" Effect size interpretation: %s", interval_cohens_d$magnitude))
|
||
print(sprintf(" p-value: %.5f", significant_interval$p.value[i]))
|
||
print("")
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
# =============================================================================
|
||
# INTERACTION EXPLORATIONS (if significant)
|
||
# =============================================================================
|
||
|
||
|
||
|
||
# First, identify which interactions are significant
|
||
significant_interactions <- anova_output[anova_output$p < 0.05 & grepl(":", anova_output$Effect), ]
|
||
|
||
if(nrow(significant_interactions) > 0) {
|
||
print("Significant interactions found:")
|
||
print(significant_interactions[, c("Effect", "p")])
|
||
|
||
# TIME × DOMAIN interaction (if significant)
|
||
if("TIME:DOMAIN" %in% anova_output$Effect && anova_output$p[anova_output$Effect == "TIME:DOMAIN"] < 0.05) {
|
||
print("\n=== TIME × DOMAIN INTERACTION (SIGNIFICANT) ===")
|
||
time_domain_emmeans <- emmeans(aov_model, ~ TIME * DOMAIN)
|
||
print("Estimated Marginal Means:")
|
||
print(time_domain_emmeans)
|
||
|
||
print("\nSimple Effects of DOMAIN within each TIME:")
|
||
time_domain_simple <- pairs(time_domain_emmeans, by = "TIME", adjust = "bonferroni")
|
||
print(time_domain_simple)
|
||
|
||
print("\nSimple Effects of TIME within each DOMAIN:")
|
||
time_domain_simple2 <- pairs(time_domain_emmeans, by = "DOMAIN", adjust = "bonferroni")
|
||
print(time_domain_simple2)
|
||
}
|
||
|
||
# TIME × INTERVAL interaction (if significant)
|
||
if("TIME:INTERVAL" %in% anova_output$Effect && anova_output$p[anova_output$Effect == "TIME:INTERVAL"] < 0.05) {
|
||
print("\n=== TIME × INTERVAL INTERACTION (SIGNIFICANT) ===")
|
||
time_interval_emmeans <- emmeans(aov_model, ~ TIME * INTERVAL)
|
||
print("Estimated Marginal Means:")
|
||
print(time_interval_emmeans)
|
||
|
||
print("\nSimple Effects of INTERVAL within each TIME:")
|
||
time_interval_simple <- pairs(time_interval_emmeans, by = "TIME", adjust = "bonferroni")
|
||
print(time_interval_simple)
|
||
|
||
print("\nSimple Effects of TIME within each INTERVAL:")
|
||
time_interval_simple2 <- pairs(time_interval_emmeans, by = "INTERVAL", adjust = "bonferroni")
|
||
print(time_interval_simple2)
|
||
}
|
||
|
||
# DOMAIN × INTERVAL interaction (if significant)
|
||
if("DOMAIN:INTERVAL" %in% anova_output$Effect && anova_output$p[anova_output$Effect == "DOMAIN:INTERVAL"] < 0.05) {
|
||
print("\n=== DOMAIN × INTERVAL INTERACTION (SIGNIFICANT) ===")
|
||
domain_interval_emmeans <- emmeans(aov_model, ~ DOMAIN * INTERVAL)
|
||
print("Estimated Marginal Means:")
|
||
print(domain_interval_emmeans)
|
||
|
||
print("\nSimple Effects of INTERVAL within each DOMAIN:")
|
||
domain_interval_simple <- pairs(domain_interval_emmeans, by = "DOMAIN", adjust = "bonferroni")
|
||
print(domain_interval_simple)
|
||
|
||
print("\nSimple Effects of DOMAIN within each INTERVAL:")
|
||
domain_interval_simple2 <- pairs(domain_interval_emmeans, by = "INTERVAL", adjust = "bonferroni")
|
||
print(domain_interval_simple2)
|
||
}
|
||
|
||
# TEMPORAL_DO × TIME interaction (if significant)
|
||
if("TEMPORAL_DO:TIME" %in% anova_output$Effect && anova_output$p[anova_output$Effect == "TEMPORAL_DO:TIME"] < 0.05) {
|
||
print("\n=== TEMPORAL_DO × TIME INTERACTION (SIGNIFICANT) ===")
|
||
temporal_time_emmeans <- emmeans(aov_model, ~ TEMPORAL_DO * TIME)
|
||
print("Estimated Marginal Means:")
|
||
print(temporal_time_emmeans)
|
||
|
||
print("\nSimple Effects of TIME within each TEMPORAL_DO:")
|
||
temporal_time_simple <- pairs(temporal_time_emmeans, by = "TEMPORAL_DO", adjust = "bonferroni")
|
||
print(temporal_time_simple)
|
||
|
||
print("\nSimple Effects of TEMPORAL_DO within each TIME:")
|
||
temporal_time_simple2 <- pairs(temporal_time_emmeans, by = "TIME", adjust = "bonferroni")
|
||
print(temporal_time_simple2)
|
||
}
|
||
|
||
# TEMPORAL_DO × DOMAIN interaction (if significant)
|
||
if("TEMPORAL_DO:DOMAIN" %in% anova_output$Effect && anova_output$p[anova_output$Effect == "TEMPORAL_DO:DOMAIN"] < 0.05) {
|
||
print("\n=== TEMPORAL_DO × DOMAIN INTERACTION (SIGNIFICANT) ===")
|
||
temporal_domain_emmeans <- emmeans(aov_model, ~ TEMPORAL_DO * DOMAIN)
|
||
print("Estimated Marginal Means:")
|
||
print(temporal_domain_emmeans)
|
||
|
||
print("\nSimple Effects of DOMAIN within each TEMPORAL_DO:")
|
||
temporal_domain_simple <- pairs(temporal_domain_emmeans, by = "TEMPORAL_DO", adjust = "bonferroni")
|
||
print(temporal_domain_simple)
|
||
|
||
print("\nSimple Effects of TEMPORAL_DO within each DOMAIN:")
|
||
temporal_domain_simple2 <- pairs(temporal_domain_emmeans, by = "DOMAIN", adjust = "bonferroni")
|
||
print(temporal_domain_simple2)
|
||
}
|
||
|
||
# TEMPORAL_DO × INTERVAL interaction (if significant)
|
||
if("TEMPORAL_DO:INTERVAL" %in% anova_output$Effect && anova_output$p[anova_output$Effect == "TEMPORAL_DO:INTERVAL"] < 0.05) {
|
||
print("\n=== TEMPORAL_DO × INTERVAL INTERACTION (SIGNIFICANT) ===")
|
||
temporal_interval_emmeans <- emmeans(aov_model, ~ TEMPORAL_DO * INTERVAL)
|
||
print("Estimated Marginal Means:")
|
||
print(temporal_interval_emmeans)
|
||
|
||
print("\nSimple Effects of INTERVAL within each TEMPORAL_DO:")
|
||
temporal_interval_simple <- pairs(temporal_interval_emmeans, by = "TEMPORAL_DO", adjust = "bonferroni")
|
||
print(temporal_interval_simple)
|
||
|
||
print("\nSimple Effects of TEMPORAL_DO within each INTERVAL:")
|
||
temporal_interval_simple2 <- pairs(temporal_interval_emmeans, by = "INTERVAL", adjust = "bonferroni")
|
||
print(temporal_interval_simple2)
|
||
}
|
||
|
||
# INTERVAL_DO × TIME interaction (if significant)
|
||
if("INTERVAL_DO:TIME" %in% anova_output$Effect && anova_output$p[anova_output$Effect == "INTERVAL_DO:TIME"] < 0.05) {
|
||
print("\n=== INTERVAL_DO × TIME INTERACTION (SIGNIFICANT) ===")
|
||
interval_do_time_emmeans <- emmeans(aov_model, ~ INTERVAL_DO * TIME)
|
||
print("Estimated Marginal Means:")
|
||
print(interval_do_time_emmeans)
|
||
|
||
print("\nSimple Effects of TIME within each INTERVAL_DO:")
|
||
interval_do_time_simple <- pairs(interval_do_time_emmeans, by = "INTERVAL_DO", adjust = "bonferroni")
|
||
print(interval_do_time_simple)
|
||
|
||
print("\nSimple Effects of INTERVAL_DO within each TIME:")
|
||
interval_do_time_simple2 <- pairs(interval_do_time_emmeans, by = "TIME", adjust = "bonferroni")
|
||
print(interval_do_time_simple2)
|
||
}
|
||
|
||
# INTERVAL_DO × DOMAIN interaction (if significant)
|
||
if("INTERVAL_DO:DOMAIN" %in% anova_output$Effect && anova_output$p[anova_output$Effect == "INTERVAL_DO:DOMAIN"] < 0.05) {
|
||
print("\n=== INTERVAL_DO × DOMAIN INTERACTION (SIGNIFICANT) ===")
|
||
interval_do_domain_emmeans <- emmeans(aov_model, ~ INTERVAL_DO * DOMAIN)
|
||
print("Estimated Marginal Means:")
|
||
print(interval_do_domain_emmeans)
|
||
|
||
print("\nSimple Effects of DOMAIN within each INTERVAL_DO:")
|
||
interval_do_domain_simple <- pairs(interval_do_domain_emmeans, by = "INTERVAL_DO", adjust = "bonferroni")
|
||
print(interval_do_domain_simple)
|
||
|
||
print("\nSimple Effects of INTERVAL_DO within each DOMAIN:")
|
||
interval_do_domain_simple2 <- pairs(interval_do_domain_emmeans, by = "DOMAIN", adjust = "bonferroni")
|
||
print(interval_do_domain_simple2)
|
||
}
|
||
|
||
# INTERVAL_DO × INTERVAL interaction (if significant)
|
||
if("INTERVAL_DO:INTERVAL" %in% anova_output$Effect && anova_output$p[anova_output$Effect == "INTERVAL_DO:INTERVAL"] < 0.05) {
|
||
print("\n=== INTERVAL_DO × INTERVAL INTERACTION (SIGNIFICANT) ===")
|
||
interval_do_interval_emmeans <- emmeans(aov_model, ~ INTERVAL_DO * INTERVAL)
|
||
print("Estimated Marginal Means:")
|
||
print(interval_do_interval_emmeans)
|
||
|
||
print("\nSimple Effects of INTERVAL within each INTERVAL_DO:")
|
||
interval_do_interval_simple <- pairs(interval_do_interval_emmeans, by = "INTERVAL_DO", adjust = "bonferroni")
|
||
print(interval_do_interval_simple)
|
||
|
||
print("\nSimple Effects of INTERVAL_DO within each INTERVAL:")
|
||
interval_do_interval_simple2 <- pairs(interval_do_interval_emmeans, by = "INTERVAL", adjust = "bonferroni")
|
||
print(interval_do_interval_simple2)
|
||
}
|
||
|
||
# THREE-WAY INTERACTION: TIME × INTERVAL × TEMPORAL_DO
|
||
print("\n=== TIME × INTERVAL × TEMPORAL_DO THREE-WAY INTERACTION ===")
|
||
three_way_emmeans <- emmeans(aov_model, ~ TIME * INTERVAL * TEMPORAL_DO)
|
||
print("Estimated Marginal Means:")
|
||
print(three_way_emmeans)
|
||
|
||
print("\nPast vs Future contrasts within each INTERVAL × TEMPORAL_DO combination:")
|
||
three_way_contrasts <- pairs(three_way_emmeans, by = c("INTERVAL", "TEMPORAL_DO"), adjust = "bonferroni")
|
||
print(three_way_contrasts)
|
||
|
||
# Calculate Cohen's d for Past vs Future contrasts
|
||
three_way_contrasts_df <- as.data.frame(three_way_contrasts)
|
||
|
||
print("\n=== COHEN'S D FOR TIME CONTRASTS IN THREE-WAY INTERACTION ===")
|
||
print("Past vs Future contrasts for all INTERVAL × TEMPORAL_DO combinations:")
|
||
|
||
for(i in seq_len(nrow(three_way_contrasts_df))) {
|
||
comparison <- three_way_contrasts_df[i, ]
|
||
|
||
# Extract the grouping variables
|
||
interval_level <- as.character(comparison$INTERVAL)
|
||
temporal_do_level <- as.character(comparison$TEMPORAL_DO)
|
||
|
||
# Get data for Past and Future within this INTERVAL × TEMPORAL_DO combination
|
||
past_data <- long_data_clean$MEAN_DIFFERENCE[
|
||
long_data_clean$INTERVAL == interval_level &
|
||
long_data_clean$TEMPORAL_DO == temporal_do_level &
|
||
long_data_clean$TIME == "Past"
|
||
]
|
||
|
||
future_data <- long_data_clean$MEAN_DIFFERENCE[
|
||
long_data_clean$INTERVAL == interval_level &
|
||
long_data_clean$TEMPORAL_DO == temporal_do_level &
|
||
long_data_clean$TIME == "Future"
|
||
]
|
||
|
||
if(length(past_data) > 0 && length(future_data) > 0) {
|
||
# Calculate Cohen's d using effsize package
|
||
cohens_d_result <- cohen.d(past_data, future_data)
|
||
|
||
cat(sprintf("INTERVAL = %s, TEMPORAL_DO = %s:\n", interval_level, temporal_do_level))
|
||
cat(sprintf(" Past vs Future comparison\n"))
|
||
cat(sprintf(" n_Past = %d, n_Future = %d\n", length(past_data), length(future_data)))
|
||
cat(sprintf(" Cohen's d: %.5f\n", cohens_d_result$estimate))
|
||
cat(sprintf(" Effect size interpretation: %s\n", cohens_d_result$magnitude))
|
||
cat(sprintf(" p-value: %.5f\n", comparison$p.value))
|
||
cat(sprintf(" Estimated difference: %.5f\n", comparison$estimate))
|
||
cat("\n")
|
||
}
|
||
}
|
||
|
||
} else {
|
||
print("No significant interactions found.")
|
||
print("All interaction p-values:")
|
||
interaction_effects <- anova_output[grepl(":", anova_output$Effect), ]
|
||
print(interaction_effects[, c("Effect", "p")])
|
||
}
|
||
|
||
|
||
|
||
# =============================================================================
|
||
# INTERACTION PLOT: TEMPORAL_DO × TIME × INTERVAL (Emmeans only)
|
||
# =============================================================================
|
||
|
||
|
||
|
||
# Define color palette for TIME
|
||
time_colors <- c("Past" = "#648FFF", "Future" = "#DC267F")
|
||
|
||
# Create emmeans for TEMPORAL_DO × TIME × INTERVAL
|
||
emm_3way <- emmeans(aov_model, ~ TEMPORAL_DO * TIME * INTERVAL)
|
||
|
||
# Prepare emmeans data frame
|
||
emmeans_3way <- emm_3way %>%
|
||
as.data.frame() %>%
|
||
filter(!is.na(lower.CL) & !is.na(upper.CL) & !is.na(emmean)) %>%
|
||
rename(
|
||
ci_lower = lower.CL,
|
||
ci_upper = upper.CL,
|
||
plot_mean = emmean
|
||
) %>%
|
||
mutate(
|
||
TEMPORAL_DO = factor(TEMPORAL_DO, levels = c("01PAST", "02FUT")),
|
||
TIME = factor(TIME, levels = c("Past", "Future")),
|
||
INTERVAL = factor(INTERVAL),
|
||
x_pos = as.numeric(TEMPORAL_DO),
|
||
time_offset = (as.numeric(TIME) - 1.5) * 0.2,
|
||
x_dodged = x_pos + time_offset
|
||
)
|
||
|
||
# Create 3-way interaction plot with facets
|
||
interaction_plot_3way <- ggplot(emmeans_3way) +
|
||
geom_errorbar(
|
||
aes(x = x_dodged, ymin = ci_lower, ymax = ci_upper, color = TIME),
|
||
width = 0.1,
|
||
linewidth = 1,
|
||
alpha = 0.8
|
||
) +
|
||
geom_point(
|
||
aes(x = x_dodged, y = plot_mean, fill = TIME, shape = TIME),
|
||
size = 5,
|
||
stroke = 1.2,
|
||
color = "black"
|
||
) +
|
||
facet_wrap(~INTERVAL, nrow = 1, labeller = labeller(INTERVAL = c(
|
||
"5" = "Present v. 5 Years",
|
||
"10" = "Present v. 10 Years",
|
||
"5_10" = "5 Years v. 10 Years"
|
||
))) +
|
||
labs(
|
||
x = "Order",
|
||
y = "Mean absolute deviation",
|
||
title = "TEMPORAL_DO × TIME × INTERVAL Interaction (Estimated Marginal Means)"
|
||
) +
|
||
scale_x_continuous(
|
||
breaks = c(1, 2),
|
||
labels = c("Past First", "Future First"),
|
||
limits = c(0.5, 2.5)
|
||
) +
|
||
scale_color_manual(name = "Temporal Direction", values = time_colors) +
|
||
scale_fill_manual(name = "Temporal Direction", values = time_colors) +
|
||
scale_shape_manual(name = "Temporal Direction", values = c(21, 22)) +
|
||
theme_minimal(base_size = 13) +
|
||
theme(
|
||
axis.text = element_text(size = 11),
|
||
axis.title = element_text(size = 12),
|
||
plot.title = element_text(size = 14, hjust = 0.5),
|
||
legend.position = "right",
|
||
legend.title = element_text(size = 11),
|
||
legend.text = element_text(size = 10),
|
||
panel.grid.major.x = element_blank(),
|
||
panel.grid.minor = element_blank(),
|
||
panel.border = element_rect(color = "gray80", fill = NA, linewidth = 0.5),
|
||
strip.text = element_text(size = 11, face = "bold")
|
||
)
|
||
|
||
print(interaction_plot_3way)
|
||
|
||
# =============================================================================
|
||
# MAIN EFFECT PLOT: TIME (Emmeans + Error Bars)
|
||
# =============================================================================
|
||
|
||
# Prepare emmeans data frame for TIME main effect
|
||
time_emm_df <- time_emmeans %>%
|
||
as.data.frame() %>%
|
||
filter(!is.na(lower.CL) & !is.na(upper.CL) & !is.na(emmean)) %>%
|
||
rename(
|
||
ci_lower = lower.CL,
|
||
ci_upper = upper.CL,
|
||
plot_mean = emmean
|
||
) %>%
|
||
mutate(
|
||
TIME = factor(TIME, levels = c("Past", "Future"))
|
||
)
|
||
|
||
# Create TIME main-effect plot (style aligned with the 3-way interaction plot)
|
||
time_main_plot <- ggplot(time_emm_df) +
|
||
geom_errorbar(
|
||
aes(x = TIME, ymin = ci_lower, ymax = ci_upper, color = TIME),
|
||
width = 0.15,
|
||
linewidth = 1,
|
||
alpha = 0.8
|
||
) +
|
||
geom_point(
|
||
aes(x = TIME, y = plot_mean, fill = TIME, shape = TIME),
|
||
size = 5,
|
||
stroke = 1.2,
|
||
color = "black"
|
||
) +
|
||
labs(
|
||
x = "Time",
|
||
y = "Mean absolute difference from present",
|
||
title = "Main Effect of TIME (Estimated Marginal Means)"
|
||
) +
|
||
scale_color_manual(name = "Temporal Direction", values = time_colors) +
|
||
scale_fill_manual(name = "Temporal Direction", values = time_colors) +
|
||
scale_shape_manual(name = "Temporal Direction", values = c(21, 22)) +
|
||
theme_minimal(base_size = 13) +
|
||
theme(
|
||
axis.text = element_text(size = 11),
|
||
axis.title = element_text(size = 12),
|
||
plot.title = element_text(size = 14, hjust = 0.5),
|
||
legend.position = "right",
|
||
legend.title = element_text(size = 11),
|
||
legend.text = element_text(size = 10),
|
||
panel.grid.major.x = element_blank(),
|
||
panel.grid.minor = element_blank(),
|
||
panel.border = element_rect(color = "gray80", fill = NA, linewidth = 0.5)
|
||
)
|
||
|
||
print(time_main_plot) |