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Beaujean, A. Alexander; Firmin, Michael W.; Michonski, Jared D.; Berry, Theodore; Johnson, Courtney – Assessment, 2010
This study assessed trait validity of the Reynolds Intellectual Assessment Scales' (RIAS) Verbal Index (VIX) and Nonverbal Index (NIX) scores in a group of college students. Using both observation of patterns and latent variable modeling of a multitrait-multimethod correlation/covariance matrix, the results indicate that the RIAS VIX scores…
Descriptors: Multitrait Multimethod Techniques, College Students, Intelligence Tests, Test Validity

Johnson, Mark E.; Fisher, Dennis G.; Rhodes, Fen; Booth, Robert – Assessment, 1996
The Wide Range Achievement Test-Revised and the Woodcock Reading Mastery Tests-Revised were administered twice to 269 current drug abusers over an average time interval of 204.2 days. Overall, the study demonstrates that the two instruments have strong psychometric properties and that results from current drug abusers are reliable. (SLD)
Descriptors: Adults, Concurrent Validity, Drug Abuse, Psychometrics