Mediation analysis is a statistical approach used to examine how the effect of an independent variable on an outcome is transmitted through an intervening variable (mediator). In this article, we provide a gentle introduction to single-level and multilevel mediation analyses. Using single-level data, we demonstrate an application of structural…

The purpose of this study was to assess the relative contribution of teacher and tutor ratings of inattentive behavior in two different instructional settings in predicting students' performance on fraction concepts and whole-number calculations. Classroom teachers rated each student's attentive behavior in a whole-class setting and tutors rated…

Using a cross-cultural perspective, researchers studied the "math avoidance syndrome," which has reached crisis proportions among American Indians, at two elementary schools on Utah's Northern Ute Reservation and Wisconsin's Oneida Indian Reservation in 1980. Researchers gathered data by observing math instruction at the schools and by…