PNB 3RM3 Lecture Notes - Lecture 36: Random Assignment

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Requires use of more than two levels of an iv. If he only tested with the smallest and largest group then he would not have realized that it only takes a small number (4) of people to create conformity beyond 4 people the effect asymptotes. Sometimes these are important, sometimes they are not: depends if you are interested in two groups being different from one another, or if you are interested in comparing them to a baseline. If you want to have a baseline of how people perform on a task before manipulating the. You do not need to have a control group if your question doesn"t cause (cid:455)ou to (cid:396)e(cid:395)ui(cid:396)e one e(cid:454). Between groups design- groups of different people exposed to different levels of the independent variables; each participant/group is only exposed to one condition. Pros: no carry over effects between conditions, no need to create equivalent versions of the same task, low concern for giving away your hypothesis.

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