Scoring the Stroop test.

The Stroop Test, also known as the color-word naming test, has been used in over sixty published psychological studies since the test was originally described by Stroop (2). The test has been used to attempt to measure a variety of processes and traits in the cognitive and personality domains, which it is not the purpose of this article to review. The psychometric characteristics of the Stroop Test, however, have never been adequately determined. The purpose of this article is to provide some normative data on the Stroop Test in the kind of population in which it is most typically used, to determine the reliabiiity of the vaiious measurements derived from the Stroop, and to arrive at some conclusion concerning the meaning of the variety of "scores" that have been derived from the test in the literature. There would surely seem to be considerable redundancy among the various scoring methods suggested by different investigators and the method of scoring the Stroop Test is in need of clarification and symplification.