Much research shows that the correlation between IQ and school performance is consistently high. However, some evidence indicates that this relationship is not consistent but is moderated by classroom psycho-social environment at the first-grade level. Data from IQ tests, the Devereux Elementary School Behavior Rating Scale, number of attendance…

This study investigated the effects of classroom composition on achievement. The analysis focused on the assessment of classroom homogeneity with respect to the socioeconomic background and general intelligence of the students. In addition, the extent to which classroom composition affects the standards the teachers employ and how these standards…