Repeated measures within subjects ANOVA report – 1 IV within ...

Repeated measures within subjects ANOVA report – 1 IV within subjects-treatment across all participants. A study was conducted to investigate the efficacy of a new migraine treatment in reducing pain severity. Researchers measured pain severity across three treatment conditions: a placebo, a low dose and a high dose of the new treatment. It was hypothesized that the only the high dose would be effective in reducing pain severity. The means and standard deviations for pain severity under each treatment condition are provided in Table 2. Table 2. Mean pain severity across treatment conditions A within subjects analysis of variance was conducted on the data. This revealed a significant difference in mean pain severity across treatment groups, F (2,118) = 13.21, p