Analyzed published data on the Wechsler Adult Intelligence Scale (WAIS) to ascertain whether the Information and Vocabulary subtests can function as measures of intelligence. Concluded that the addition of more WAIS subtests will not result in any increase in predictive validity and these additional tests, therefore, lack incremental validity.…

Reviewed studies in which clinicians made judgments and then rated the degree of confidence that they had in each of their judgments. Results reveal little support for the hypothesis that clinicians are overconfident. Confidence ratings were related positively to the validity of judgments in a number of studies. Experienced clinicians made more…

Describes the Psychological Screening Inventory, a relatively brief, easy to administer, and score screening instrument. A comprehensive review of the empirical literature suggests moderate reliability, generally stable factor structure, and adequate validity, particularly for use with college undergraduates, with reformatory and prison inmates,…

The pattern of correlations between subtests suggests that several of the aptitudes are of doubtful validity. In no case was it possible to extract more than three adequately determined factors. (Author)

Analyzed the Matching Familiar Figures Test, which has been employed by researchers to determine conceptual tempo, for potential use as a tool for the clinician. Discusses the psychological factors inherent in impulsivity. Suggests the primary deficits are a lack of norms as well as an alternate form. (Author)

Analyzed the reliability, abnormality, and validity of Verbal Performance discrepancy scores on the WISC-R in relation to clinical decision making about learning disabilities. Suggests the information of greatest value seems to be the magnitude of the discrepancy that is both reliable and valid for learning-disabled children. (Author)

Revises the concept of verifiability of life events by requiring that they be verified. Presents three design issues which interact with verifiability and event qualification, which may result in threats to their validity. Suggests all three types of objectivity-subjectivity should be considered in designing life event studies. (Author/JAC)