Eight highly structured fifth- and sixth-grade classrooms were compared with seven less structured classrooms with respect to the degree to which teachers', classmates', and self ratings of ability to read were in agreement. It was suggested that classroom structures may effect perceptions of ability. (CTM)

Data from 136 junior high school classes were analyzed to investigate how student behavior, student achievement, and teacher behavior all related to student ability levels in class composition. Both higher ability students and lower ability students achieved better in higher ability classes. Class composition had more impact on lower ability…