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The Stroop Effect

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The original Stroop task in 1935 was far from perfect as its conclusions were later re-evaluated and refined by Hintzman et al. (1972). It was determined that competition amongst stimuli was causing delays in incongruent tasks not interference from one stimulus over the other. Numerosity Stroop tasks demonstrated that numbers can also cause delays in reaction times when the number and number of digits are incongruent with each other (Windes, 1968). Although recently, Stroop tasks have become more of a testing material rather than the focal point of the study. Stroop tasks are beneficial in determining cognitive capabilities, yet there is a gap from previous research that necessitates the numerical Stroop task be highlighted once again. While Windes (1968) began the numerical Stroop task, the research did not determine what causes the interference in naming the quantity stimuli in an incongruent numerosity task. …show more content…
To best determine which conclusion is more accurate, congruent and incongruent numerosity tasks will be tested to see how quickly each task can be completed. There will be four separate tasks: the first with single digits where the number must be named, the second group will have different quantities of + signs where the number of symbols must be named, the third group are incongruent numbers such as 222 and 1111 where the quantity must be named, and the final group are congruent numbers such as 4444 and 22 where once again the quantity must be named. Participant’s times will be recorded for each task and the mean completion times for each task will be compared. I hypothesize that interference will be exhibited strongest in the incongruent group leading to longer reaction times compared to each other

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