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Intelligence Tests	2
Tables (Data)	2
Test Reliability	2
Adults	1
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Journal of Clinical Psychology

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Atkinson, Leslie	1
Pickering, John W.	1

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Systematic VIQ/PIQ Differences on the WAIS: An Artifact of This Instrument?

Peer reviewed

Pickering, John W.; And Others – Journal of Clinical Psychology, 1977

This research investigated the possibility that there exists a systematic difference in WAIS verbal and performance IQ indices. It was hypothesized that VIQ (verbal) scores on the WAIS tend to be significantly higher than PIQ (performance ability) scores. (Author/RK)

Descriptors: Clinical Psychology, Intelligence Tests, Measurement Instruments, Psychological Studies

Reliability, Errors, Significance, and Abnormality: WAIS-R Factor Scores.

Atkinson, Leslie – 1990

Three tables are provided to aid in the clinical interpretation of factor scores for the Wechsler Adult Intelligence Scale-Revised (WAIS-R; 1981). The factor structure of the WAIS-R has proven to be robust across samples, tests, time, statistical analyses, measurement scales, and distortions of the distribution. Information necessary to make…

Descriptors: Adults, Clinical Diagnosis, Diagnostic Tests, Error of Measurement