Title page for ETD etd-06072006-124148

Type of Document Dissertation
Author Bickley, Patricia
URN etd-06072006-124148
Title The three stratum theory of cognitive abilities : test of the structure of intelligence across the life span
Degree PhD
Department Educational Research
Advisory Committee
Advisor Name Title
Keith, Timothy Z. Committee Co-Chair
Wolfle, Lee M. Committee Co-Chair
Arditti, Joyce A. Committee Member
Cross, Lawrence H. Committee Member
Singh, Kusum Committee Member
  • Intelligence tests
  • Cognition Testing
Date of Defense 1993-07-09
Availability unrestricted
Recently a three stratum theory of intelligence that combines the major

aspects of Spearman's theory of general intelligence (g) (1927) and Horn and

Cattel's theory of crystallized and fluid intelligence (Of-Ge) (1991) has been

proposed (Carroll, 1993). The purpose of this study was to test the three stratum

theory using confirmatory factor analysis with the LISREL computer program.

Developmental changes in the structure of intelligence were also investigated.

Results provided support for the three stratum theory, suggesting the possibility of

intermediate factors between the second and third stratum but no support for

developmental changes in the organization of cognitive abilities.

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