Format

Send to

Choose Destination
Psychol Aging. 2004 Mar;19(1):211-4.

Adult age and digit symbol substitution performance: a meta-analysis.

Author information

1
Department of Psychology, Syracuse University, Syracuse, NY 13244-2340, USA. wjhoyer@syr.edu

Abstract

This article reports the results of a meta-analysis of the effects of age, education, and estimated year of measurement on scores from the Wechsler Adult Intelligence Scale and the Wechsler Adult Intelligence Scale-Revised Digit Symbol Substitution Test. Analysis of effect sizes for age reported in 141 studies published between 1986 and 2002 indicated a mean standardized difference of -2.07. Age accounted for 86% of the variance in a regression model using age, education, and year submitted as predictors of Digit Symbol scores. There was no association between years of education or year submitted and Digit Symbol scores for younger adults or older adults.

PMID:
15065945
DOI:
10.1037/0882-7974.19.1.211
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for American Psychological Association
Loading ...
Support Center