Abstract. In a recent paper, tested several distribution-based methods designed to assess when test scores obtained before and after an intervention reflect a statistically reliable change. However, we still do not ...
Abstract. When planning group-randomized studies probing mediation, effective and efficient sample allocation is governed by several parameters including treatment-mediator and mediator-outcome path coefficients and the mediator and ...
Abstract. This article proposes an approach, intended for factor-analytic (FA) psychometric applications, which aims to assess the extent to which the FA-derived individual score estimates are accurate and allow the respondents to be ...
Abstract. Equivalence tests (also known as similarity or parity tests) have become more and more popular in addition to equality tests. However, in testing the equivalence of two population means, approximate sample sizes developed using ...