Describes the development, validity, and reliability (0.91 to 0.94) of a 50-item, Likert-format scale to measure students' attitudes toward science in grades 4 through 12 (N=806). (Author/JN)

Compared conventional biology instruction to personalized system of instruction (PSI) and investigated relationship between achievement and selected variables (age, sex, family income/size, grade point average, motivational factors, treatment group, and California Achievement Test scores) of college students (N=80). Results, among others, indicate…

Reliability, validity, and standards-setting procedure for a criterion-referenced test (Test of Metric Skills) were examined for use in science curricula. Results indicate a number of factors influencing test reliability/validity and that science teachers need to be aware of these factors to enhance accuracy of their judgments. (Author/JN)

Presents a qualitative analysis of an episode from a beginning teacher's biology lesson to demonstrate the intricate relationships among teacher intentions, curriculum materials, teaching, and potential student outcomes. Develops the concept "epistemological flatness" as a way of characterizing salient aspects of curriculum materials and teaching…

Determined extent to which eighth-grade students' (N=35) knowledge of concepts relevant to mineral classification influenced their ability to classify minerals and which concepts were most influential. Results showed that 58.7% of variance in correct mineral classification was accounted for by students' knowledge of relevant concepts, particularly…

National Association for Research in Science Teaching (NARST) members (N=101) responded to a 1979 survey, listing 398 statements of needed research. Three categories of needed research emerged as the greatest concern of these NARST members: instructional strategy, learning, and student/teacher attitudes. (Author/JN)

Investigated dynamics of change at the classroom level by identifying factors influencing change perceived by administrators, teachers, pupils, and investigator-observer. Results are reported as facilitating/hindering factors affecting adoption of individualized instruction, including teacher, course of study, facilities/materials, administration,…

Argues that secondary analysis of existing data sets provides an important opportunity for science education researchers. Reviews basic arguments for secondary analysis (quality, cost, scientific merit of multiple analyses of a common data set), discusses new forces fostering these analyses, and provides three examples of secondary analysis…

Illustrates advantages of research on practical factors in reasoning. Discusses role of factual knowledge and diagnosis of specific task-based errors in reasoning, influence of individual aptitudes on reasoning, and effect of educational interventions designed to change reasoning. Presents Piagetian position for each position, discusses evidence…

Discusses whether formal thought constitutes a structured whole and role of propositional logic in advanced reasoning. Presents aspects of advanced reasoning model, considering hypothesis generation/testing as central processes in intellectual development. Argues that advanced reasoning schemata are linked by these processes and should be…

Investigated relationships between physics achievement and language of instruction where instruction was in the second language of both students and teachers. Grade 10 subjects (N=176) studied light/sound in either Chinese (N=90) or English (N=86). No differences in achievement, students' motivation, and time spent in physics were found.…

Determined whether or not formative evaluation could facilitate goal attainment in a biochemistry course and produce desired learning outcomes consistently by altering course materials and/or instruction. Formative evaluation procedures included two tests administered to subjects (N=64) over a three-year period. Findings supported the formative…

Examined effects of teaching method (self-directed, group-directed, teacher-directed), academic ability, student assessment of treatment, and allowed time on achievement in three Individualized Science Instructional System (ISIS) biology minicourses. Results, among others, indicated that individualized instruction favored high-ability students and…

Introductory college biology students (N=101) reported frequencies of 20 overt, in-class teaching behaviors and rated the instructor on 12 measures of teaching effectiveness. Moderately strong relationships were found between student perceptions of "information-transmitting" behaviors and achievement, while generally stronger relationships linked…

Speculates that physiological changes resulting from repeated, long-term stimulation in human and laboratory animal brains are related to short- and long-term memory processes. Describes a physiological-based model which may explain many current learning theory principles and can serve as a foundation for developing new learning theories based on…