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Peer reviewedJahnke, Heather Casper; Blanchard-Fields, Fredda – Journal of Youth and Adolescence, 1993
Formal operational ability and interpersonal understanding, possible predictors of adolescent egocentrism, were studied in 87 adolescents from 4 age groups--preadolescents, ages 11-12; young adolescents, ages 13-14; adolescents, ages 16-17; young adults, ages 18-21. Interpersonal understanding level did predict egocentrism as measured by a…
Descriptors: Adolescents, Developmental Stages, Egocentrism, Formal Operations
Peer reviewedWebb, Paul; Boltt, Gill – Journal of Biological Education, 1990
Investigated is the ability of high school pupils and university students to answer questions based on relationships within food webs using sound ecological principles. Research methods used and the results of this study are discussed. (CW)
Descriptors: Biology, Cognitive Structures, College Science, Ecology
PDF pending restorationFleener, M. Jayne; And Others – 1993
Higher order cognitive development and success in the study of high school mathematics and science require an understanding of rational number concepts and facility with proportional reasoning and computation. Proportional reasoning is an essential schema for developing formal operational thought. This study involving 16 ninth-grade students was…
Descriptors: Abstract Reasoning, Algorithms, Cognitive Development, Formal Operations
