Researchers developing questionnaire measures of personality, motivation, and self-regulation constructs related to students' achievement and persistence in STEM or other fields rarely have examined whether the items on the measures used are functioning differently across groups, which is necessary for accurate group comparison. The present study…

Despite their significant contributions to research on self-regulated learning, those favoring online and trace approaches have questioned the use of self-report to assess learners' use of learning strategies. An important rejoinder to such criticisms consists of examining the validity of self-report items. The present study was designed to assess…