The Stroop Effect Experiment

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METHODS

Participants

There were nine participants in this study, five in the first group and four in the second group. The first group included Daina Berry, Justin Quintrell, Paige Govey, Natalie Campbell, and Jared Flannery, while the second group included Megan Powell, Kyle Sugonis, Abigail Mrozek, and Vanessa Landgrave. These participants are undergraduate students from Dr. Kelling’s 11:00AM Experimental Psychology course. The students partook in the study in order to receive a passing grade for the class assignment.

Equipment

This experimental research was conducted in a laboratory setting. The necessary equipment for each group included a stack of twenty squiggle cards, a stack of twenty word cards, and a stopwatch. On the back of each card, the correct color was written to allow for swift and accurate scoring. In order to record the results, each individual participant also needed a sheet of paper and a pencil or ballpoint pen.

Procedure

The famous Stroop Task, a within subjects design, was replicated on Tuesday, April 12, 2011 in classroom 303 within Harris Hall on the Marshall University campus in Huntington, West Virginia.

Due to a failure in communication, the two groups followed slightly different procedures. However, in both groups, participants were asked to name the color of the card presented to them.

The first group. To begin, the group members determined which students would hold additional roles. Paige Govey was given the role of “timer,” and Daina Berry was given the role of “flipper.” Justin

Quintrell accepted these responsibilities when necessary (when Paige or Daina was the participant).

Participant order was chosen by the flipper. Then the repeatable part of the procedure began.

The first p...

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...ticipants to read the color-words. Our experiment did not include this deck. I originally thought this would really affect the data. However, since the third deck appears to be a neutral control, like the Squiggle Cards, I can hope any effect is essentially minimal.

Our experiment also failed to take note of how many times the colored ink corresponded (or contrasted) with the color-words. If this facet had been observed, we may have been able to determine whether the reaction times were faster (or slower) for corresponding cards. Due to the nature of the experiment, I would assume that times are generally faster for corresponding cards. However, it is also possible that participants stumbled over corresponding cards, having expected the ink to be a different color. This is not necessarily detrimental. Still, it is a way the experiment could have been improved.

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