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Testing a Theory

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Ariel Berdon At home one day (a few years ago), I decided to test a theory I had about chocolate chip cookies. The theory was: “I think that the cookies would taste better if the dough was left in the refrigerator for 48 hours before getting baked.” My informal hypothesis was, "If I let the dough sit in the refrigerator for 48 hours, then these cookies will taste better than those cookies that were baked immediately after preparation.” This was a form of Experimental Research, which psychologists use to establish cause-and-effect relationships (Feldman, 2012, p. 29). I found that the cookies baked after 48 hours in the refrigerator (after preparation) were tastier than the cookies baked immediately after preparation. This conclusion was based on a single-blind test of 10 volunteers (not including myself obviously). Eight out of the ten chose the “refrigerator” cookie over the “immediate” cookie, without knowing which one was which. If given another opportunity, I would have also baked the cookies after 24 hours and after 72 hours in the refrigerator. This way, I could compare immediately after preparation, after 24 hours, after 48 hours, and after 72 hours to see how the cookies would taste. A survey was done with the 10 volunteers that tasted both cookies; it was found that the “refrigerator” cookies tasted better because they were more fluffy and chewy than the “immediate” cookies. “Replication is research that is repeated, sometimes using other procedures, settings, and groups of participants, to increase confidence in prior findings” (Feldman, 2012, p. 32). I plan to do this experiment again with the four variables instead of two, and 10 or 15 new participants. I think the recipe I used was a good one, so I will use the same recipe again in the new experiment.

Reference:
Feldman, R. S. (2012). Psychology and your life (2nd ed.). New York, New York: McGraw-Hill Companies, Inc.

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