Student ratings of teaching quality have been shown to be powerful predictors of important academic outcome variables. This is the case despite the fact that students from the same classroom can perceive teaching quality quite differently in their own idiosyncratic ways. These differences among students in the same classroom are typically…

Ability test scores were decomposed into district, class, and individual components. First-order factor analyses at the individual level showed the usual Primary Mental Abilities test pattern. Second-order analyses grouped the primary factors into one power and one speed factor. Decomposition of variances in multilevel educational research is…