Although there was an increase in the proportion of students using the logical principle of exclusion" from grades 7 to 9 to 12, there was little relationship with IQ and socio-economic measures. (AL)

Four tasks which are frequently used to evaluate adolescent reasoning skill: (1) the pendulum task; (2) the ramp problem; (3) the cart experiment; and (4) the invisible magnetism experiment are analyzed to determine the Piagetian concepts that each measures. (CP)

Many science curriculum development projects have the goal of increasing students' ability to employ scientific or formal reasoning strategies. Argues that longitudinal data of students who acquired formal reasoning strategies as a consequence of specific instruction are needed to provide evidence that these skills will help in other academic…

Discusses the use of the clinical interview in assessing cognitive structure and in investigating conceptual change. They caution much more work is needed to increase the applicability and validity of the clinical interview method and point out that there is a lack of systematization in the analysis of interview transcripts. (Author/PB)

Describes the development of an instrument which is: (1) is capable of administration to students in grades 6-14; (2) requires the examinee to construct a conceptual answer from information provided; (3) requires the examinee to use the seven major logical operations (classification, seriation, logical multiplication, compensation, ratio,…

The author examines Novak's position that science and mathematics educators should discard Piaget's theory of intellectual development in favor of Ausubel's theory of meaningful learning as a guide for teaching practice and research. (PB)

The general purposes of this study were to analyze responses on five Piagetian formal operational tasks in a test-retest situation to determine the extent to which taking a pretest effected scores on posttests and to determine task and examiner reliabilities. Significant test score gains on Piagetian tasks appeared to result from test-retest…

This study designed to use Piagetian logical operations and open-ended, clinical interviews to collect data amenable to a developmental analysis of children's levels of understanding of specific science topics: gravity, energy, and magnetism. Results indicated a correspondence between a child's overall cognitive development and the specific…

Defines five levels between concrete and formal operation in the development of the concept of controlling variables. The sample, methodology and research on which the work is based is described in SE 519 500. (CP)

The relationships between 54 sixth grade students' performance on the Piagetian balance beam and bending rods tasks were correlated with their answers to value-laden questions. Significant positive relationships were observed. Implications from these findings for science instruction are discussed. (CP)

Investigated the effects of the reading and logical thinking abilities of average and below-average students in urban high schools on learning outcomes of using the Intermediate Sciences Curriculum Study (ISCS) level and materials. (HM)

Discusses a study which compared differences in ratio construction made by high school freshman and junior students. Reports that more freshmen than juniors selected solutions involving one variable, whereas juniors chose solutions that coordinated two variables in a mathematical or verbal rule. Reviews implications in problem solving and concept…

Data on 140 eighth-grade earth science students were analyzed to see if logical thinking, instructional method, and the interaction between those two variables explained a significant portion of variance in achievement. Logical thinking was found to account for more variation in achievement than did treatment, although treatment also affected…

A general model of conceptual change which is largely derived from current philosophy of science, but which can illuminate learning as well, is described. Some features of this model are illustrated by interviews with students studying special relativity in physics. Finally, some pedagogical implications are presented. (Author/PB)

Compared formal reasoning responses of seventh-and eighth-grade students on three tests of formal reasoning. The three tests differ only in the mode of equipment presentation on identical test items and problems. Tests included three-dimension demonstration (Lawson), two-dimension showing drawings of materials used in three-dimensional test, and…