PSYC 2002 Lecture Notes - Lecture 9: Family-Wise Error Rate, Type I And Type Ii Errors, Multiple Comparisons Problem

• School: Carleton University
• Department: Psychology
• Course: PSYC 2002
• Professor: Angel Mackenzie

Document Summary

One-way between-groups anova: sstotal = ssbetween + sswithin. Anova post hoc tests (tukey"s hsd) 3 groups of adults: no dream deprivation, moderate dream deprivation, substantial dream deprivation. Anova dreaming & temperament example: data (*chart in lecture slide*) H1: some means are different: note lack of specificity in research hypothesis; all anova can do by itself is indicate that if h0 is rejected, difference exists b/w at least 2 of the means being compared. Requires 2 dfs: dfb = k 1 = 3 1 = 2, dfw = n k = 15 3 = 12. Look up corresponding fcritical value for f(2, 12) = 3. 89. Normally, critical value look-up occurs in step 2; Could be done later when deriving dfs for ms calculations. Anova dreaming & temperament example: gm & mk (*in lecture slide*) Anova dreaming & temperament example: no deprivation group (*in lecture slide*) Anova dreaming & temperament example: moderate deprivation (*in lecture slide*)