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Kinesthetic Aftereffect Scores Are Reliable

Baker, A. Harvey; Mishara, Brian L.
Publication Year:
Report Number:
ETS Research Bulletin
Document Type:
Page Count:
Subject/Key Words:
Data Analysis, Kinesthetic Perception, Perception Tests, Test Reliability, Test Validity


The validity of Kinesthetic Aftereffect (KAE) as a measure of personality has been criticized because of KAE's poor test-retest reliability. However, systematic bias effects render KAE retest sessions invalid and make test-retest reliability an inappropriate measure of KAE's true reliability. Internal consistency calculations, better estimates of KAE's true reliability, have been flawed in the past. New analysis of internal consistency data from 10 samples using two different KAE procedures are presented. Internal consistency of KAE scores were found to be high (median .89 for five samples with Petrie's procedure and median .59 for five samples with Weintraub's procedure). Both procedures provided adequate reliability. Some increment in reliability can apparently be obtained by extending the number of trials in the Weintraub procedure. (20pp.)

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