Effect of differing number of colors on the Stroop Color and Word Test
The effects of amount of information in the Stroop color word test
Perceptual and Motor Skills
The processing time of the relevant (color) and irrelevant (word) stimulus dimensions in a Stroop color word test were each varied by manipulating the amount of information in the color and word sets from which the stimuli were obtained. Interference in the Stroop task was found to increase with increases in relevant and irrelevant stimulus information. It was concluded that the findings of increased interference with increases in both word and color processing time supported a perceptual conflict interpretation of Stroop task interference.
Golden, C. J.
(1974). Effect of differing number of colors on the Stroop Color and Word Test. Perceptual and Motor Skills, 22(5), 22-463.
Available at: http://nsuworks.nova.edu/cps_facarticles/1359