Instrumental variables is a popular approach for causal inference in education when randomization of treatment is not feasible. Using a first-year college program as a running example, this article reviews the five assumptions that must be met to successfully use instrumental variables to estimate a causal effect with observational data: SUTVA,…

In this study we examined the DSM-5 factor structure of scores on the Turkish version of the posttraumatic stress disorder (PTSD) Checklist for DSM-5 (PCL-5) and predictors of PTSD caseness in a sample of male prisoners. The 7-factor hybrid model was the optimal model relative to the alternatives. Consistent with the PTSD literature in prisoners,…

Early childhood intervention practitioners (N = 42) reviewed three early intervention performance checklists and three intervention practice guides and made social validity judgments of the acceptability and importance of the products. Both the checklists and practice guides included evidence-based characteristics and indicators that are known to…

If school choice programs are to provide any degree of equitable access to educational opportunities, then useful information about academic quality needs to be available to all participants, not just those who hob knob with the school board members or chat with the superintendent over the backyard fence. This study draws upon a unique data set to…

Objective: ADHD has been linked to various constructs, yet there is a lack of focus on how its symptom clusters differentially associate with personality, which this study addresses. Method: The current study examines the relationship between impulsive and inattentive ADHD traits and personality, indexed by the Revised NEO Personality Inventory…