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Abstract
This study examined the sensitivity of a computerized neuropsychological screening (ImPACT) to the cognitive effects of depression in a sample of 20 students with suspected depression and 20 healthy university students matched for gender, age, and education. Students with depression had slower reaction times (p < .02; d = .82, large effect) and processing speeds (p < .03; d = .77, large effect). The brevity and sensitivity of ImPACT to the cognitive effects of depression warrants further research with psychiatric populations.
ACKNOWLEDGEMENT
This study was presented at the annual conference of the American Psychological Association, August 2003, Toronto, Ontario, Canada. The author thanks Mark Lovell, Ph.D., for providing the data used for this study. The author thanks Janine Moseley and Jennifer Bernardo for assistance with manuscript preparation. This research was supported by NeuroHealth Research & Rehabilitation, Inc.
Notes
Note: Twenty participants in each group. Cohen's d is a mean difference score presented in pooled, weighted (if sample sizes differ) standard deviation units. By convention, .2 = small effect size, .5 = medium effect size, and .8 = large effect size.