Experimental psychology is witnessing an increase in research on individual differences, which requires the development of new tasks that can reliably assess variations among participants. To do this, cognitive researchers need statistical methods that many researchers have not learned during their training. The lack of expertise can pose…

The current study examined the psychometric properties and correlates of three measures assessing individual differences in mattering among people from Palestine assessed in January, 2024. This study uniquely considers mattering as a resource and feelings of not mattering as a risk factor among people experiencing traumatizing life circumstances.…

The generalizability of factor structures of student ratings of instruction based on instructors' individual differences was examined. The subjects were instructors from the humanities, social science, and mathematics divisions who had had their courses evaluated at least twice using the same evaluation questionnaire. The data from the three…