Nominator's statement

The Stroop Effect (color words interfere with color naming of the ink used to print the words), along with the word-superiority effect, are two of the most important effects to be accounted for by theories of word recognition and lexical processing.

comments

• 1) This is also the most cited paper in cognitive psycology. 2) It is discussed in every Introductory Psychology class 3) As a non-cognitive psychologist, I know of it, so it's made the leap from specialist research to something everyone should know.

• Stroop-like phenomena indicate automatic processing in the sense of processing without monitoring and as such reflect very important aspects of human behavior.

• One of the most extensively replicated and extended phenomena in cognitive psychology (witness the 400+ studies noted by MacLeod, 1991)