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.