To decrease the likelihood of making a Type 1 error during the means comparison process, a researcher could
A) compare all means within the study.
B) eliminate all data that supports the null hypothesis.
C) only conduct pairwise comparisons and only if the F value is significant.
D) increase alpha.

Question

Quizplus · Accepted Answer

Conducting pairwise comparisons only if the F value is significant helps control the overall Type 1 error rate in the context of multiple comparisons, such as in ANOVA. This approach ensures that more detailed tests are only performed when there is initial evidence of a difference among the groups, thus reducing the likelihood of incorrectly rejecting the null hypothesis (Type 1 error).

To Decrease the Likelihood of Making a Type 1 Error