Benjamin Kelcey

TL;DR: This work utilizes Rubin’s causal model to interpret the bias necessary to invalidate an inference in terms of sample replacement, and applies it to an inference of a positive effect of Open Court Curriculum on reading achievement from a randomized experiment.

TL;DR: This article conducted a theory-based analysis of the underlying structure of the Tripod student perception survey instrument using the Measures of Effective Teaching (MET) database (N = 1,049 middle school...

TL;DR: The authors examined the statistical precision of cluster randomized trials (CRTs) funded by the Institute of Education Sciences (IES) and found that the average precision in terms of MDES of studies in the recent cohort was more than double that of the early cohort (i.e. 0.48 compared to 0.23).

TL;DR: This article developed formulas for power analyses to detect the moderator effects in designing three-level cluster randomized trials (CRTs) and developed the statistical formulas for calculating statistical power, minimum detectable effect size difference, and 95% confidence intervals for cluster or cross-level moderation, nonrandomly varying or random slopes, binary or continuous moderators, and designs with o...

TL;DR: Recently, there has been an increase in the number of cluster randomized trials (CRTs) to evaluate the impact of educational programs and interventions as mentioned in this paper, and these studies are often powered for the main...