This study was part of a project to develop science and technology (STS) issue investigation and action materials with the potential for use across science and social studies classes at the secondary level. Special emphasis was given to learning teachers' perspectives on the development of a unit on the impact of pesticides on society. Seven areas…

This study had three purposes. First, to develop and validate a criterion-referenced test to measure science knowledge of students who finished the second cycle of the Basic General Education (6th grade). Second, to assess the performance of the entire Costa Rican population of sixth graders and, third, to analyze the results according to some…

A majority of the school districts that desegregate use magnet schools as part of their effort. Magnet schools offer enriched academic or vocational programs to attract committed students whose neighborhood schools do not offer the coursework and activities they seek. This paper is concerned with science magnet schools. This study was designed to…

The objective of this project was to develop a valid and reliable multiple choice test of six basic science process skills for students in grades 4 to 8 (ages 8 to 14 years). Seven criteria were outlined for the test: an emphasis on the six most widely used science process skills (observation, inference, prediction, measurement, communication, and…

The purpose of this study was to (1) develop and validate criterion-referenced tests to measure science knowledge of students who finished the fifth grade, as well as those who finished the three cycles of the General Education and (2) to assess the performance on these tests of a national, random sample of fourth-, sixth-, seventh-, and…