Investigates the effect of increase of the M demand of chemistry problems, having the same logical structure, on performance of students having different functional M capacity, cognitive style, and formal operational reasoning patterns. (Author/YP)

Describes biological competitions at the high school level in Poland. Argues that they can be used to enhance and maintain students' interest in the subject. (Author/YP)

Describes a diagnostic evaluation to measure the idea of the living cell as the basic unit of life. Describes the classification of student knowledge as common knowledge, wide-spread lack of knowledge, inadequate alternatives, and contradictions. (YP)

Reports a study to compare the performance of Australian university students on chemistry questions delivered in two different formats: multiple choice and grid. Concluded that students encounter more difficulties with questions presented in the grid format and that grid questions demand a deeper understanding of the topic. (MDH)

Presents a study where astronomy teachers (n=66) try to predict student (n=330) outcomes on astronomy and related topics pre- and posttest. Suggested findings include a course in astronomy did not result in an overall knowledge gain, teachers fared well at predicting prior student knowledge, and teachers vastly overestimated student gain in…

Describes the progress made in Northern Ireland toward the introduction of GCSE science curricula in postprimary schools. Documents the move from separate courses in chemistry, physics, and biology to integrated science courses. (DDR)

Scores from mathematics (tested at 102 schools) and science (tested at 99 schools) sections of pilot forms of the Michigan High School Proficiency Test were examined for interaction between gender and response format (multiple choice or constructed response). Overall, neither males nor females seemed to be disadvantaged by item format. (SLD)

Reports on a study that uses psychometric modeling to rank the appeal of a variety of children's astronomical ideas on a single uniform scale. Findings support the view that alternative conceptions may be markers of progress toward understanding. Contains 82 references. (DDR)

Provides hypothesized explanations for local item dependence (LID) in a large-scale hands-on science performance assessment involving approximately 55,000 students each at grades 3, 5, and 8. Items that appear to elicit locally dependent responses require examinees to answer and explain their answers or to use given or generalized information to…

Applied the analytical judgment standard setting method to 90 papers from the 1996 Grade 8 National Assessment of Educational Progress science assessment. Compared sorting versus direct classification, long and short versions of the classification scale, and effects of discussion on cutscores. Results from 17 Georgia teachers and 8 Michigan…

Sixth-grade teachers (n=26) estimated item performance for their students (724 total students) on a 50-item district-wide science test. Teachers were more accurate in estimating performance of the total group than of the borderline group, but in neither case was their accuracy high. Estimating proportion-correct values using the Angoff standard…

Investigates the scope and nature of tasks demanding students' application of higher order thinking skills while studying biology in junior and senior high schools in Israel. Contains 29 references. (DDR)

Describes the development of the performance assessment tasks of the Third International Mathematics and Science Study. The challenge was to produce tasks that would measure the achievement of curricular objectives while being sufficiently reliable to allow comparisons between countries and of groups within countries. (SLD)

Using the expectancy-value model of achievement motivation as a basis, this study's purpose is to develop, apply, and validate scores from a self-report instrument measuring student test-taking motivation. Sampled evidence of construct validity for the present sample indicates that a number of the items in the instrument could be used as an…

This research examined the degree of comparability and sources of incomparability of English and French versions of reading, mathematics, and science tests that were administered as part of a survey of achievement in Canada. The results point to substantial psychometric differences between the 2 language versions. Approximately 18% to 36% of the…