When designing a study for causal mediation analysis, it is crucial to conduct a power analysis to determine the sample size required to detect the causal mediation effects with sufficient power. However, the development of power analysis methods for causal mediation analysis has lagged far behind. To fill the knowledge gap, I proposed a…

Reading nonfiction texts with understanding is important to school success, yet many students struggle to do so. This randomized controlled trial extends previous research by contrasting an earlier iteration of a comprehension tutoring program (Comp) against a variant with strategies for transferring learning (Comp+Transfer). Participants were 189…