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Adolescents2
Developmental Stages2
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Developmental Psychology2
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Flieller, Andre1
Lapsley, David K.1
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Adolescent Egocentrism and Formal Operations: Tests of a Theoretical Assumption.
Peer reviewed Peer reviewed
Lapsley, David K.; And Others – Developmental Psychology, 1986
Describes two studies of the theoretical relation between adolescent egocentrism and formal operations. Study 1 used the Adolescent Egocentrism Scale (AES) and Lunzer's battery of formal reasoning tasks to assess 183 adolescents. Study 2 administered the AES, the Imaginary Audience Scale (IAS), and the Test of Logical Thinking to 138 adolescents.…
Descriptors: Adolescents, College Students, Developmental Psychology, Developmental Stages
Comparison of the Development of Formal Thought in Adolescent Cohorts Aged 10 to 15 Years (1967-1996 and 1972-1993).
Peer reviewed Peer reviewed
Flieller, Andre – Developmental Psychology, 1999
Administered five Piagetian tests to 180 adolescents for comparison to similar samples from 1967 and 1972. Found that today's adolescents exhibited higher levels of cognitive development than did previous cohorts. Gain varied across tasks, being very large for combinatory thought but mixed for conservation. This acceleration of cognitive…
Descriptors: Adolescents, Cognitive Development, Cohort Analysis, Cross Sectional Studies