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Test-Retest Reliability of Psychological and Neurobehavioral Tests Self-Administered by Computer

DVA Medical Center, Portland

Diane S. Rohlman

Oregon Health Sciences University

Daniel Storzbach

Laurence M. Binder

DVA Medical Center, Portland

W. Kent Anger

Craig A. Kovera

Kelly L. Davis

Sandra J. Grossmann

Oregon Health Sciences University

A series of 12 psychological and 7 neurobehavioral performance tests were administered twice to a nonclinical normative sample with 1 week between administrations. The tests were presented in a self-administered computerized format. One week test-retest reliabilities were comparable to conventional administration formats. The results suggest that individual test reliability is not affected when tests are administered as part of an extensive multi-measure battery. Computer administered test reliability coefficients also were compared to a Mixed Format (computer-conventional) administration with mixed format reliabilities generally similar to the reliabilities of published conventional tests but also generally lower than same format testing. Compared to psychological test reliability, neurobehavioral test reliability appeared more vulnerable to decreases with mixed format testing. These conclusions should not be generalized to all computer implemented tests as the qualities of the test implementation will affect the outcome.

Key Words: Test-retest reliability • computer assessment • SCL-90-R • MMPI-2 • SF-36 • BDI(Beck Depression Inventory) • BAI (Beck Anxiety Inventory) • neurobehavioral assessment • PCL (PTSD Checklist)

Assessment, Vol. 6, No. 1, 21-32 (1999)
DOI: 10.1177/107319119900600103


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