Examines the feasibility of using a time-series design intensively in a school situation. Investigates student attitudes toward a biology class using the operant single-subject design. Despite the developmental nature of this study, it demonstrates that the five-item semantic differential is a valid and easily used instrument. (Author/MA)

Concepts, categories, time allotment, and instructional techniques associated with teaching Science/Technology/Society issues were examined for 65 exemplary secondary level science teachers. An analysis of a Science Teaching Issue Opinionnaire and another questionnaire are presented. Thirty-two references are listed. (CW)

Discusses the complicating effects of ambivalence on the validity of science attitude measurement scales. Cites studies indicating that the positive and negative effects about a particular psychological object are not necessarily bipolar. Suggests the use of factor analysis to check dimensionality in instruments. (TW)