The interpretation of the results of Hick and Merkel in terms of Communication Theory has failed to lead to a satisfactory theory of choice‐reaction times. This paper presents an alternative interpretation of the original results in terms of n parallel decision processes, the reaction time being determined by whichever of these n decisions takes the longest. This interpretation is slightly preferable in that it gives an adequate account of the variances obtained by Hick. Some of the implications of this new interpretation are discussed.
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Donald Laming (1966) studied this question.