Consistent with earlier research using the Wechsler Intelligence Scale for Children (WISC) and the WISC-Revised, the Information, Digit Span, and Digit Symbol (i.e., Coding) subtests contribute substantially and independently to group differentiation. A. Bannatyne's Sequential factor also discriminates between these groups. (Author)

Describes the objectives, the procedures, and the evaluation involved in a personalized system of instruction (PSI) that has been introduced, as an option and as an alternative, in teaching a general physics course at Purdue University. (GA)

This study investigates the effects of content sequence on student learning. The treatments, a spatial and conceptual instructional sequence each consisting of identical content elements, were administered to students in a two-year college Botany course. Hypotheses tested were that sequence would have an effect on student perceptions of the…