Comparison of the Shipley Institute of Living Scale and WAIS-R IO scores for a sample of public sector psychiatric inpatients.

This study examined the use of the Shipley Institute of Living Scale as a screening device in an intellectually low functioning psychiatric population of 40 inpatients. Shipley IQ scores were significantly correlated .72 with Full Scale WAIS-R IQ scores. There was no significant difference between the mean IQ scores generated from the two measures. These findings suggest that the Shipley scale may be used in this population despite a caution by the test's publisher that the test should not be used in assessing intellectual functioning in individuals with borderline or lower intelligence.