Aging and the Stroop effect: a meta-analysis.

In this meta-analysis, data from 20 studies comparing younger and older adults on the Stroop interference effect, contained in 15 articles, were analyzed. No significant difference was found in the Stroop interference effect, expressed as mean standardized difference, between the 2 age groups (for younger adults: d = 2.04; for older adults: d = 2.17). Moderator variables were present, but these did not produce age differences. Brinley analysis showed that a single regression line with a slowing factor of 1.9 described the data well (R2 = .83) and confirmed that no Age x Condition interaction was present in the data. Likewise, no Age x Condition interaction was found when the data were fitted to the information loss model; the age ratio of decay rates was estimated to be 1.4. Consequently, the apparent age-sensitivity of the Stroop interference effect appears to be merely an artifact of general slowing.

[1]  H. Werner,et al.  Interference effects of Stroop color-word test in childhood, adulthood, and aging. , 1962, The Journal of genetic psychology.

[2]  Denise C. Park,et al.  Handbook of the Psychology of Aging , 1979 .

[3]  D. C. Bradford,et al.  Age-related decrements in Stroop Color Test performance. , 1984, Journal of clinical psychology.

[4]  P. Panek,et al.  Locus of the age-Stroop interference relationship. , 1984 .

[5]  William D. Berry,et al.  Multiple regression in practice , 1985 .

[6]  L. Hedges,et al.  Statistical Methods for Meta-Analysis , 1987 .

[7]  Lynn Hasher,et al.  Working Memory, Comprehension, and Aging: A Review and a New View , 1988 .

[8]  J. Myerson,et al.  The information-loss model: a mathematical theory of age-related cognitive slowing. , 1990, Psychological review.

[9]  James L. McClelland,et al.  On the control of automatic processes: a parallel distributed processing account of the Stroop effect. , 1990, Psychological review.

[10]  J. Cerella.  Aging and Information-Processing Rate , 1990 .

[11]  Colin M. Macleod.  Half a century of research on the Stroop effect: an integrative review. , 1991, Psychological bulletin.

[12]  S. D. Lima,et al.  How general is general slowing? Evidence from the lexical domain. , 1991, Psychology and aging.

[13]  L Hasher,et al.  Aging and suppression: memory for previously relevant information. , 1991, Psychology and aging.

[14]  A. D. Fisk,et al.  General slowing alone cannot explain age-related search effects: reply to Cerella (1991) , 1992, Journal of experimental psychology. General.

[15]  J. Stroop.  Studies of interference in serial verbal reactions. , 1992 .

[16]  J. Jolles,et al.  Stroop interference: aging effects assessed with the Stroop Color-Word Test. , 1993, Experimental aging research.

[17]  D. Burke,et al.  Why do semantic priming effects increase in old age? A meta-analysis. , 1993, Psychology and aging.

[18]  P. Rabbitt,et al.  Applying Brinley plots to individuals: effects of aging on performance distributions in two speeded tasks. , 1994, Psychology and aging.

[19]  H. Buschke,et al.  Proportional slowing and addition speed in old and young adults. , 1994, Psychology and aging.

[20]  David L. Strayer,et al.  Aging and inhibition: beyond a unitary view of inhibitory processing in attention. , 1994, Psychology and aging.

[21]  L. Jacoby,et al.  Stroop process dissociations: the relationship between facilitation and interference. , 1994, Journal of experimental psychology. Human perception and performance.

[22]  T. Perfect.  What can Brinley plots tell us about cognitive aging? , 1994, Journal of gerontology.

[23]  A. D. Fisk,et al.  Brinley plots and theories of aging: the explicit, muddled, and implicit debates. , 1994, Journal of gerontology.

[24]  W. Rogers,et al.  Mechanisms Underlying Reduction in Stroop Interference With Practice for Young and Old Adults , 1994 .

[25]  J. Myerson,et al.  Brinley plots, explained variance, and the analysis of age differences in response latencies. , 1994, Journal of gerontology.

[26]  E B Ryan,et al.  Cognitive mediation of adult age differences in language performance. , 1995, Psychology and aging.

[27]  I. Whishaw,et al.  Fundamentals of Human Neuropsychology , 1995 .

[28]  T. Salthouse,et al.  Aging, inhibition, working memory, and speed. , 1995, The journals of gerontology. Series B, Psychological sciences and social sciences.

[29]  R. West,et al.  An application of prefrontal cortex function theory to cognitive aging. , 1996, Psychological bulletin.

[30]  W. Dunlap,et al.  Meta-Analysis of Experiments With Matched Groups or Repeated Measures Designs , 1996 .

[31]  G. Lautenschlager,et al.  Mediators of long-term memory performance across the life span. , 1996, Psychology and aging.

[32]  T. Salthouse,et al.  General and specific speed mediation of adult age differences in memory. , 1996, The journals of gerontology. Series B, Psychological sciences and social sciences.

[33]  D. Balota,et al.  Stroop performance in healthy younger and older adults and in individuals with dementia of the Alzheimer's type. , 1996, Journal of experimental psychology. Human perception and performance.

[34]  E. A. Bosman,et al.  Age differences in stroop-like interference as a function of semantic relatedness , 1996 .

[35]  A. Hartley,et al.  Age-related equivalence of identity suppression in the Stroop color-word task. , 1997, Psychology and aging.

[36]  C. Weir,et al.  Are backward words special for older adults? , 1997, Psychology and aging.

[37]  V. Bruce.  Unsolved mysteries of the mind : tutorial essays in cognition , 1998 .