Psychology 3800F/G Chapter Notes - Chapter 4: Type I And Type Ii Errors, Factor Analysis, Null Hypothesis
23 Mar 2017
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Chapter 4 single factor analysis of variance designs: used to test the difference between more than 2 groups to see if they are representative of different populations. Single factors design aka completely randomized single factor analysis of variance design aka one-way design: one iv classifies the subjects into different groups, aka factor of interest or factor under investigation. Levels of the factor different groups formed by the iv. Subjects are randomly assigned and can only be a member of one group: one dv. If the iv is an ordered quantitative factor with equal intervals, trend analysis can be applied as well. An example: assessing the influence of three drugs on behaviour. From treatment group the subject is randomly assigned to. Xai = each observation: x = an observation, a = the group it appears in i = which observation it is in the group (cid:454) a = the mean of each group, g = mean for the entire table.
