This article presents the pseudo-equivalent group approach and discusses how it can enhance the quality of linking in the presence of nonequivalent groups. The pseudo-equivalent group approach allows to achieve pseudo-equivalence using propensity score reweighting techniques. We use it to perform linking to establish scale concordance between two…

Comparing group is one of the key uses of large-scale assessment results, which are used to gain insights to inform policy and practice and to examine the comparability of scores and score meaning. Such comparisons typically focus on examinees' final answers and responses to test questions, ignoring response process differences groups may engage…

The theory of peer effect posits that students who find themselves in the company of high or low performing peers tend to exhibit better academic performance than what is solely attributable to their own individual characteristics. In this study, we investigate peer effects within literacy achievement among Trinidadian and Tobagonian youth, using…