Data analysis
In order to verify the normality of the metric variables that were incorporated into the mixed linear model, the Shapiro–Wilk test and the Kolmogorov–Smirnov test (The results of the variables of a metric type were analyzed using a factorial 2 × 2 mixed‐effects ANOVA with a fixed factor of Group (QET, CON) and Time (pretest, posttest). The 