Examined the influence of selected factors on secondary student's performance in practical chemistry for a sample of students and teachers from 39 Nigerian schools. Student participation in laboratory activities and students attitudes to chemistry were identified as being the most important factors affecting performance in chemistry. (ML)

Reports a study which investigated the cross-cultural validity, reliability, and distinctiveness of the subscale structure of the Test of Science Related Attitudes (TOSRA). Results from tests of American high school students (N=336) indicated that the seven subscales were highly reliable, but that the discriminant validity was low. (ML)

Reviews a study that analyzed the inquiry-oriented matriculation tests of 12th-grade biology students (N=3650) in Israel for the purpose of finding the interrelationships among 21 process skills. Discusses the seven factors that emerged from factor analysis and indicates the theoretical and practical implications of the findings. (ML)

Discusses a study that examined the role of four cognitive factors (formal reasoning ability, prior knowledge, field dependence/independence, and memory capacity) on achievement in chemistry as measured by tests of lab application, chemical calculations, and content knowledge. Reports the significance of prior knowledge and formal reasoning…

Explains a study that proposed and tested how graphical representations influence what is learned and recalled from text. Results highlighted the importance of graph-focusing strategies for text learning and support the creative use of interactive computer presentation. (ML)

Naturalistic and experimental inquiry methods in educational research and evaluation are described and compared, using illustrations from two science education research projects. Several strengths and limitations of each inquiry style are identified. Suggests that investigators consider both paradigms in planning research and evaluation studies.…

Compared detailed (favoring field dependence and induction) and nondetailed (favoring field dependence and deduction) assignments on biology achievement of grade 10 male students (N=95) over a seven-month period. Detailed assignments, employing pictorial and verbal block diagrams and high structure, significantly enhanced learning among some…

Ability of five cognitive characteristics to predict students' (N=96) achievement of evolution and natural selection concepts was measured. Results, among others, indicate that disembedding ability, prior knowledge, and evolutionary belief were significantly related to achievement while developmental level and mental capacity were not. (JN)

National Assessment of Educational Progress data show that, by age 9, girls express interest but do not engage in as many science activities as boys. This continues through ages 13 and 17, paralleled by increasing negative views of science and science classes/careers. Suggestions to eliminate inequalities found are offered. (JN)

Assesses Scientific Attitude Inventory (SAI) by examining the instrument and 30 studies in which it has been used. In addition, shows how conceptual analysis may be used to investigate validity of a research instrument. Indicates that SAI needs reworking since it is less than certain of what is being measured. (Author/JN)

Investigated superiority of instructional strategies (factor-label method, proportionality, use of analogies, use of diagrams) in teaching problem-solving related to mole concept, gas laws, stoichiometry, and molarity. Also investigated effectiveness of strategies for students (N=609) with different verbal-visual preferences, proportional…

Basic characteristics of survey as a research study are discussed. Issues associated with survey research, potential uses of survey research as a strategy in science education, and potential problems jeopardizing survey studies are also discussed. (JN)

The selective attention model was used to explain effects of overprompting students (N=170) provided with study questions adjunct to a complex flow diagram describing scientific cyclical schema. Strongly prompting students to answers of questions was less effective than an unprompted question treatment, suggesting that prompting techniques be used…

Results of modifying mastery learning strategy to two diagnostic cycles with high school chemistry students (N=156) indicated that achievement of mastery learning students was significantly greater than that on nonmastery learning students. Attitudes toward science/science instruction were not significantly different but were positive in both…

Compared effectiveness of discovery and expository instructional strategies on science knowledge and attitudes of fifth-grade Egyptian students (N=276). Although there were no sex differences, students taught by discovery scored higher in achievement (recall and application) and attitudes than those taught by the expository method. (JN)