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Suicide rates in National Collegiate Athletic Association (NCAA) student-athletes: A 12-year longitudinal analysis

Objective: This study compared NCAA suicide rates by gender, sport, contact type, participation type, and division over 12 academic years. Participants: NCAA student-athletes. Methods: We conducted a retrospective cohort review of NCAA …

How can statisticians support refugees?

In this special issue, we aim to lay the groundwork for statistical support for refugee populations. We hope this special issue will serve as a valuable resource for the statistics community. We also want to highlight the broader value of statistics …

Robust variance estimation in small meta-analysis with the standardized mean difference

Conventional random-effects models in meta-analysis rely on large sample approximations instead of exact small sample results. While random-effects methods produce efficient estimates and confidence intervals for the summary effect have correct …

Effect sizes in ANCOVA and difference-in-differences designs

It is common practice in both randomized and quasi-experiments to adjust for baseline characteristics when estimating the average effect of an intervention. The inclusion of a pre-test, for example, can reduce both the standard error of this …