The reasoning of adolescents in indeterminate situations was examined with particular attention given to how individuals incorporate the possibility that outcomes are determined jointly by more than one variable. Kuhn and Brannock's (1977) plant problem and two other similarly structured problems were administered to 25 inner-city adolescents…

Examined college students' logical reasoning ability using the Test of Logical Thinking (TOLT) as a major predictor of science acheivement. Reports an improvement on each of the subscale scores, and a significant correlation with four science subjects on both pre- and post-TOLT scores. (YP)

Reasoning abilities of Cypriot 12th graders in five forms of formal logical thought were studied in relation to academic achievement and gender differences. Results support proposals that suggest that there are specialized abilities dealing with specific domains of reality. The five reasoning modes were significant predictors of achievement. (SLD)

Misconceptions, shown to be prevalent in students even at the college level, may affect the cognitive process of making predictions in biology. The purpose of this study was to: (1) identify students' misconceptions about important biological concepts; (2) identify students' cognitive behaviors associated with making predictions about these…

The reasoning abilities to be expected of the concrete operational and formal operational student, the percentage of secondary science students that are capable of each type of reasoning pattern, and effective strategies to teach science to concrete reasoners are described. Implications for curriculum development are discussed. (KR)