PSYC 3000 Lecture Notes - Lecture 1: Multiple Comparisons Problem, Analysis Of Variance, Dependent And Independent Variables

• School: Carleton University
• Department: Psychology
• Course: PSYC 3000
• Professor: Bruce Hutcheon

Document Summary

Dependent variable is how many words are recalled. Independent variable is the unique instruction for each group. In assignment table 1 is the raw material for all tests that will be done. You could do an independent samples t test between two groups to see if they are significantly different. In anova you test the hypothesis that there is no difference between all the groups. Once you find out that there is a difference between some groups, you can do individual t test. First problem: the s pooled in each t test is different. So instead we should create an s pooled with the data from all the groups and use this s pooled in every t test conducted. So basically the denominator of each t test will always be the same. Second problem: pc error rate is the same as alpha.