The following article provides a brief primer and overview of multilevel and hierarchical linear modeling. The school-effects model with random effects is illustrated with a heuristic dataset. Finally, recommendations are presented for researchers studying learning disabilities who would like to utilize this methodology.

This paper examines instructional processes in two seventh-grade science classes and describes three components of general education middle school content classrooms (curriculum, verbal presentations during instruction, and assessed performance outcomes). It concludes that these three components need to be aligned for the successful inclusion of…