PNB 3RM3 Lecture Notes - Lecture 36: Random Assignment

• School: McMaster University
• Department: Psychology, Neuroscience & Behaviour
• Course: PNB 3RM3
• Professor: Jennifer Ostovich

Document Summary

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.