Eighty-one university students were given a battery of reaction time tests and a group test of intelligence which yielded timed and untimed scores. Multiple regression analyses indicated that speed of information-processing was an equally good predictor of timed and untimed intelligence test performance. (Author/LMO)

The performance of 136 college students at the University of Western Ontario (Canada) on various parameters of two well-known puzzles was compared with performance on a measure of general intelligence and the Hidden Figures Test. An interpretation of the results is provided by Sternberg's experimental subtheory of intelligence. (SLD)

To assess the effects of timed/untimed testing conditions on intelligence scores, high school students were assigned to an intelligence test under either conditions and subsequently to a battery of eight reaction time tests. Results showed that subjects scores were related to the speed with which they processed information. (JAZ)

Raven's Progressive Matrices test items were analyzed for M demand (Pascual-Leone's developmental construct). Data on second- and third-grade subjects were analyzed for extent of absolute agreement of Raven and Figural Intersection Test (FIT) scores. Raw scores on the Raven could be deduced on the basis of FIT performance. (Author/RD)