Determined that graphic organizers are effective in increasing the achievement of sixth-grade (N=235) and seventh-grade (N=220) middle school students who used the organizers. Reasons why the graphic organizer enhances student learning and is an effective and practical teaching strategy are also discussed. (JN)

Investigated sex-related differences in science achievement from a science assessment project in British Columbia. Findings (obtained from students in grades 4, 8, and 12) confirm earlier findings that boys outscore girls on items testing understanding and application of scientific knowledge. No sex-related differences on process skills were…

Approximately 4000 students participated in a study to determine relationships between attitudes toward science, achievement motivation, and demographic variables over the school year and across grades (6-10) by sex. Positive attitudes and motivation declined steadily across the grades with significant sex differences (males having more positive…

Uses base-year data from a nationally representative database (NELS:88) to identify important explanatory factors for gender differences in science performance. Documents a large advantage for boys on the subtest of physical science and a modest advantage for girls in life science. Concludes that laboratory experiences are beneficial for girls'…

Reports on a study to extend the concurrent and predictive validity of the Teacher Performance Assessment Instrument by including a sample of middle school science teachers. The validity criteria for the study involved observing student engagement and integrated process skill achievement. (TW)