INFORMATION with the highest validity seems to have a pobnt-topoint correspondence with the criterion. For instance, in a review article of the scorable application blank, Asher (1972) concluded that biographical information showed substantially higher predictive validity when job proficiency was the criterion, than other predictors including tests of intelligence, personality, interest, perception, motor skill, and mechanical ability.The generalization seemed t o be that factual and verifiable historical information about applicants was the best predictor of future performance in specific positions. This implication was based on comparisons with tests designed t o measure "simple" dimensions. Simple in this context means a pure or single dimension of behavior.If there is merit in a theory about predictive power in a pointto-point connection between the predictor and criterion space, then tests of single dimensions should be less powerful predictors than more complex tests such as work sample tests designed to be a miniature replica of the criterion task. The intention was not to include in this review ready-made standardized tests, but only work samples especially created for specific criterion tasks.In a search of the literature, work sample tests were classified into the categories of either motor or verbal. A work sample was identified as "motor" if the task was a physical manipulation of things as, for example, tracing a complex electrical circuit, operating a sewing machine, making a tooth from plaster, or repairing a gear box. A work sample test was classified as "verbal" if there was a problem situation that was primarily language-oriented or people-oriented. For instance, the in-basket problem required the subject to deal with a set of materials which a company manager