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Psychol Aging. 1995 Jun;10(2):294-303.

Structural equation model of intellectual change and continuity and predictors of intelligence in older men.

Author information

1
Department of Psychology, Concordia University, Montreal, Quebec, Canada.

Erratum in

  • Psychol Aging 1998 Sep;13(3):434.

Abstract

This study examined the effects of abilities as a young adult, an engaged lifestyle, personality, age, and health on continuity and change in intellectual abilities from early to late adulthood. A battery of measures, including a verbal and nonverbal intelligence test, was given to 326 Canadian army veterans. Archival data provided World War Two enlistment scores on the same intelligence test for this sample: Results indicated relative stability of intellectual scores across 40 years, with increases in vocabulary and decreases in arithmetic, verbal analogies, and nonverbal skills. Young adult intelligence was the most important determinant of older adult performance. Predictors for verbal intelligence were consistent with an engagement model of intellectual maintenance but also indicated the importance of introversion-extraversion and age. Nonverbal intelligence in late life was predicted by young adult nonverbal scores, age, health, and introversion-extraversion.

PMID:
7662188
DOI:
10.1037//0882-7974.10.2.294
[Indexed for MEDLINE]

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