Replies to Gholson's commentary (PS 522 655) on the article by Coldren and Colombo in this monograph. Discusses limitations in the shift procedure methodology traditionally used in research on discrimination learning, and considers the use in future research of methodologies that can precisely decompose children's responses to feedback during…

Introduces teachers to potential benefits of using conceptual analysis as an alternative didactic strategy. Outlines the framework and techniques, reviews relevant literature, and demonstrates several methods for developing cases. Concludes that conceptual analysis is a valuable technique for improving students' empirical thinking and work.…

Proposes a categorization scheme based on instructional design theory and empirical findings for employing various types of graphic/visual displays under specified conditions. (Author/CHC)

Sex typing among preschool children was investigated by means of a complete experimental design to test which factors maintain sex-typed behaviors, to test whether sex-typed behaviors are learned, and to reduce sex typing. The complete experimental design, it is maintained, allows investigators to focus on the consequences of sex typing rather…

Reexamines the traditional role of observation in science and science education. Proposes that since observation is based on some view of the world, it is not innocent and unbiased, but theory-dependent. Discusses possible implications for the science curriculum when reconsidering the role and status of observation in science. (TW)