Described is the development of a test battery measuring nine enquiry skills in three general areas: using reference materials, interpreting and processing information, critical thinking in science. Validation data are reported from the administration to a large sample of junior high science students. (CS)

Explored were the effects of direct or indirect reinforcement and student knowledge of the criteria for acceptable hypotheses on hypothesis generation by ninth-grade students. A combination of both of the variables, reinforcement and knowledge of acceptable hypotheses, appear to lead to better hypothesis generation. (CS)

Instrumentation, methodology, and analysis techniques were developed to measure changes in adolescents' (N=10) skills in linear distance estimation. Microcomputers were used to present and control amount of information available to assist students in said estimations. Results and implications are reported. (Author/SK)

Summarizes results of the meta-analysis of 105 research studies dealing with effects of new science curricula on student performance. Twenty-seven different new science curricula involving one or more measures of student performance were included in the analysis. Positive performance patterns were found in all new curricula examined. (JN)