Reports a study undertaken to determine the effect of the Science Curriculum Improvement Study (SCIS) on logical thinking. Evidence of logical thinking was measured as the ability to explain compensating variables that occurred in a cart experiment presented on silent 16 mm film. (GS)

This study was conducted to analyze the classification ability of middle class, culturally diverse, and visually impaired children after instruction in a Science Curriculum Improvement Study (SCIS) unit. The SCIS unit was effective in improving student abilities to classify. (PS)

Compares current science education reform efforts with those of the 1960s to enhance student learning. Discusses how an "alternative models" view of scientific explanation can contribute to reforms of course goals, social aspects of science learning, instructional practices, and roles for technology. Contains 50 references. (ZWH)

The development and administration of a scientific literacy test designed to measure achievement of the objectives of the Science Curriculum Improvement Study (SCIS) project is described. Students who had completed the six year SCIS curricula were compared with those who had used other science materials. SCIS subjects scored significantly higher…

Research on the development of ability to control variables during adolescence is reviewed. The first section discusses studies by Piaget and his collaborators, replications of Piaget's studies, and related studies by other investigators. Factors which influence performance on controlling variables tasks are delineated; the existence of Piaget's…