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Reliability and Validity of the Speed of Thinking Test

University of Missouri-Kansas City

The Speed of Thinking Test (STT) has been developed as a measure of cognitive speed. Individuals must decide quickly whether pairs of letters, such as Ab or aA, have the same name. A group of 129 college students were administered this measure plus the Nelson-Denny Reading Test (NDRT), the Accuracy Level Test (ALT), and the Rate Level Test (RLT). The reliability coefficient for the STT was .80, which was higher than the reliability coefficient for the Comprehension score on the Nelson Denny Reading Test, .68. The SPT correlated .26 with the Rate score on the NDRT, and .60 with the RLT. The STT appears to provide a reasonably reliable and valid method for measuring cognitive speed that may be used to diagnose whether individuals are reading at a rate commensurate with their thinking rate.

Educational and Psychological Measurement, Vol. 52, No. 1, 125-134 (1992)
DOI: 10.1177/001316449205200118


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