Why do we perform the ANOVA in experiments with more than 2 conditions of the IV rather than simply using multiple t-tests? a. The omnibus ANOVA is not any better than running multiple t-tests. b. The omnibus ANOVA shows us which group(s) are significantly different from the rest, unlike multiple t-tests. c. Multiple t-tests would decrease our alpha level less than The omnibus ANOVA increases our alpha level. d. Multiple t-tests would increase our alpha level greater than The omnibus ANOVA controls for this.
