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Direct linkJiang, Depeng; Pepler, Debra; Yao, Hongxing – International Journal of Behavioral Development, 2010
Do interventions work and for whom? For this article, we examined the influence of population heterogeneity on power in designing and evaluating interventions. On the basis of Monte Carlo simulations in Study 1, we demonstrated that the power to detect the overall intervention effect is lower for a mixture of two subpopulations than for a…
Descriptors: Intervention, Evaluation, Heterogeneous Grouping, Monte Carlo Methods
