Fig 1.
Study design.
Table 1.
Descriptive statistics for child background and family variables.
Table 2.
Means and standard deviations of outcome variables by condition and measurement time.
Table 3.
Correlations among EF test scores at pre-assessment (t1) and partial correlations with children’s background variables controlling for age.
Table 4.
Comparison of the performances of the intervention and control group on the EF tasks at t2 and t3: means, standard deviations, and results of between-group ANCOVAs.