There are some educational interventions aimed at changing the ways in which individuals interact, and social networks are particularly useful for quantifying these changes. For many of these interventions, the ultimate goal is to change some outcome of interest such as teacher quality or student achievement, and social networks act as a natural…

Conventional methods for mediation analysis generate biased results when the mediator--outcome relationship depends on the treatment condition. This article shows how the ratio-of-mediator-probability weighting (RMPW) method can be used to decompose total effects into natural direct and indirect effects in the presence of treatment-by-mediator…

Developed an extension of the Hollander and Sethuraman (M. Hollander and J. Sethuraman, 1978) statistic (B squared) for testing discordance among intra-block rankings of K elements for multiple groups of raters. Simulation results confirmed the usefulness of B squared as an omnibus test of interaction among intra-block ranks and demonstrated its…