Validating the intended interpretations for proposed uses of tests scores is paramount for making valid inferences in educational and psychological research. Ascertaining measurement invariance for measurement instruments is an assumption for comparing means. If measurement invariance does not hold for groups of interest, comparison of means will…

Although temperament and motivation both reflect individual differences in what is perceived as rewarding or threatening, and what is to be approached and what avoided, respectively, we know rather little about how they are connected in educational settings. In this study, we examined how different aspects of temperament (reward and punishment…