3. Statistical Analysis
Estimated power was 0.80, alpha (margin of error): 0.05, effect size was 0.4. Accordingly, the sample size was determined as 106 for the chi-square test. All files (106 files) were included in the study, as the number of files remaining after assessing all the files according to the exclusion criteria. The data distribution was examined using the Shapiro–Wilk test. Comparisons between two independent groups with normal distribution were made using the independent sample t-test, while comparisons between two independent groups without normal distribution were made using the Mann–Whitney U test. When the normal distribution assumption was not met for comparisons between two dependent groups, the Wilcoxon test was used, and when the assumption was not met for more than two dependent groups, the Friedman test was used. Descriptive statistics of the data were presented as mean ± standard deviation or median (min–max). All the statistical analyses were performed using the IBM SPSS Statistics 26.0 software and reported at a significance level of α = 0.05.