Investigated proportional reasoning abilities of 35 college science students using projection of shadows problem while presenting relevant only or relevant/irrelevant information. Field independence was measured using Group Embedded Figures Test. Students in relevant only condition performed significantly better. Degree of field independence…

Examines whether retesting: (1) affects achievement of students (N=95) grouped according to previous achievement in science; and (2) influences students to delay studying and perform at a low level on initial tests. Also examines whether procrastination of retested students is affected by their achievement level. (DS)

Determined if modifying Bloom's mastery strategy improves science achievement during a six week human physiology unit. Findings indicate only a small degree of improvement in achievement of 185 students. Suggests that the approach employed in this study would be impractical for the biology classroom. (DS)

Determined the effect of using previsit instructional materials on student learning for a museum field trip experience. Ten earth science classes were assigned to experimental (instruction over field trip) and control (normal class instruction) groups. Found previsit instructional materials significantly increased student test scores. (DS)

A Biological Sciences Curriculum Study (BSCS) inquiry approach for university general biology laboratory was tested against a well-established commercial program judged to be highly directive. The BSCS was found to be more effective in learning biology laboratory concepts than the commercial program as measured by a laboratory concepts test.…

The Self Lesson Report Form (SLRF) was designed as an alternative to direct classroom observation or to commonly used questionnaires in which students and/or teachers report on general practices used in their classes. Describes the SLRF, assesses its validity/reliability, and illustrates kinds of information obtained using the SLRF in Israel…

Investigated students' (N=43) conceptions of what happens when water boils, evaporates, and condenses, and when ice melts. Results obtained from clinical interviews indicate that childrens' conceptions are quite different from those of scientists and that their ideas can sometimes be influences in unintended ways during instruction. Implications…

A meta-analysis of research results for correlating science achievement and attitude was conducted, using 43 studies with 15 variables coded for each correlation found in each study (yielding 280 coefficients). Casual ordering results support achievement causing attitude in grades three to eight and mixed results thereafter. Additional results are…

Examined relationships between Sudanese science teachers' pupil control ideology and the students' perceptions/observations of the psychosocial environment of their classrooms. Implications of the lack of significant relationships between the humanistic/custodial control between the ideologies of teachers and student perceptions are discussed from…

Determined differences between lecture-demonstration and small-group laboratory approaches on students' (N=74) chemistry achievement and attitudes toward science. Findings indicate that students taught by the laboratory approach achieved better on immediate/delayed posttests than students taught by lecture-demonstration method. More desirable…

Reports on the development and validation of an inventory designed to identify the needs of science teachers in developing nations, particularly the Arab countries. The instrument, Science Teacher Inventory of Need, consists of 83 items arranged under seven categories. (JN)

Investigated whether examining materials from several perspectives had greater effect on development of projective spatial abilities than examining materials from a single perspective. Results using 105 students (56 females, 49 males) favored the former approach. Also, sex was determined to have no direct effect on development of projective…

Examined how science content knowledge, moral reasoning ability, attitudes, and past experiences mediate the formation of moral judgments on environmental dilemmas. Environmental science majors (N=86) and nonmajors (N=105) participated in the two-phase study which found that moral reasoning is influenced by the context (setting) of a moral…

Age-specific variables of science teacher survival rates, incoming number of new teachers, and rate at which science teachers change age cohorts were used in a 5-year longitudinal study of all Kansas physics/chemistry teachers to project the need for teachers in 1985 and in 1990. Methodology and results are reported. (Author/JN)

Examined beliefs and principles of one science teacher using the Repertory Grid Technique. The technique is illustrated thoroughly with ample interview segments provided. The significance of the study is argued within the framework of curriculum and instructional innovation and implementation. (Author/JN)