DETERMINING BASALS FOR THE PEABODY INDIVIDUAL ACHIEVEMENT-TEST

The appropriateness of the starting points for PIAT subtests as suggested by the test authors was investigated. For a sample of 113 subjects with an average WISC‐R Full Scale IQ of 98, there was an average difference of nearly 8 points between the suggested starting points for the Mathematics subtest and the actual basals. The difference between suggested starting points and basals for the other subtests ranged from 8 to 12 points. It was suggested that the PIAT user start each subtest approximately 8 items below that suggested by the Manual. Copyright © 1979 Wiley Periodicals, Inc., A Wiley Company