Effects on WAIS-III performance IQ (PIQ) and full scale IQ (FSIQ) when object assembly is substituted for each standard performance scale subtest.

According to the WAIS-III Administration and Scoring Manual, Object Assembly (OA) may be substituted for any spoiled Performance subtest. This assertion has not been evaluated in a clinical sample. The present investigation reports differences that resulted in Performance IQ (PIQ) and Full Scale IQ (FSIQ) when OA replaced each of the Performance subtests.

Discrimination of healthy and brain-damaged elderly using the WAIS-R.

The authors evaluated the ability of WAIS-R variables to discriminate normal from brain-damaged persons 75 years of age and older. Fifty-four brain-damaged patients and 54 healthy elderly were matched on the variables of age, education, sex, and race. Significant level of performance differences emerged between the groups on all subtests and the three IQs.

Reliabilities of the WAIS-III for discrepancy scores: generalization to a clinical sample.

Internal consistency reliabilities for WAIS-III IQ, Index, and subtest discrepancy scores are provided for 100 men in a treatment program for substance abuse disorders. There were 63 Euro-Americans and 37 African Americans. Means for age, education, and Full Scale IQ were 46.