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Author: Gissberg, Linda
Resulting in 1 citation.
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Rodgers, Joseph Lee Gissberg, Linda |
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Identification of a Flynn Effect in the NLSY: Moving from the Center to the Boundaries Working Paper, Department of Psychology, University of Oklahoma, 2005 Cohort(s): Children of the NLSY79 Publisher: Department of Psychology, University of Oklahoma Keyword(s): Armed Forces Qualifications Test (AFQT); Digit Span (also see Memory for Digit Span - WISC); Flynn Effect; I.Q.; Intelligence; Memory for Digit Span (WISC) - also see Digit Span; Peabody Individual Achievement Test (PIAT- Math); Peabody Individual Achievement Test (PIAT- Reading); Tests and Testing Permission to reprint the abstract has not been received from the publisher. The Flynn Effect (Flynn, 1984) is an annual increase in IQ of around .33 points per year observed in developed countries during the past century. It emerges from problem solving and non-verbal components of IQ. The cause has been argued, and a number of theories proposed. Rodgers (1998) noted that the search for causes has preceded specification of the nature of the effect. We use a large national sample of U.S. children to test for the Flynn Effect in PIAT Math, PIAT Reading Recognition, PIAT Reading Comprehension, Digit Span, and PPVT. An effect of the predicted magnitude was observed for nationally normed scores on each outcome, and on PIAT Math when maternal IQ was controlled. This finding in a large representative sample with thousands of variables opens the door to test a number of different hypotheses about the nature of and the causes of the Flynn Effect in both environmental and biological domains. |
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Bibliography Citation
Rodgers, Joseph Lee and Linda Gissberg. "Identification of a Flynn Effect in the NLSY: Moving from the Center to the Boundaries." Working Paper, Department of Psychology, University of Oklahoma, 2005. |