Students (n = 797) from 36 4th-grade classrooms were taught the control of variables strategy for designing experiments. In the instruct condition, classes were taught in an interactive lecture format. In the manipulate condition, students worked in groups to design and run experiments to determine the effects of four variables. In the both…

An unadjusted low-achievement criterion was compared with a regression-discrepancy criterion for identifying learning disabled children. The use of an unadjusted achievement raw score criterion resulted in misdiagnosing many children as learning disabled, while failing to identify many others. Different sets of predictor variables were associated…

Combined teacher ratings of perceived cognitive competence and misbehavior accounted for the most variance in peer acceptance or rejection of educable mentally handicapped children. Ratings of academic competence were associated with both acceptance and rejection of educationally handicapped children (a category of low achievers used in…

Reading and writing development of 54 children from grade one through four was studied. Poor first-grade readers almost invariably were poor readers at completion of grade four. Poor readers tended to become poor writers. Early writing skill did not predict later ability as well as did early reading ability. (SLD)