In addition to the outcome that rated high, several outcomes in this study rated low: verbal ability at ages 3, 4, and 5; three measures of effortful control at age 5 (the wrapped-gift task, draw-a-star task, and tower task); and a second proactive parenting analysis at age 3 (correlation). These outcomes rated low because we could not assess attrition or baseline equivalence based on information reported in the study, nor was this information available from the author. Also, some outcomes in the structural equation models reported in this study were not eligible for review because the model did not estimate the direct, total effect of the intervention on the outcome.This study is part of a large RCT described by Dishion et al. (2008).
Chang, H., Shaw, D. S., Dishion, T. J., Gardner, F., & Wilson, M. N. (2015). Proactive parenting and children's effortful control: Mediating role of language and indirect intervention effects. Social Development, 24(1), 206-223.