Including a blocking factor in the ANOVA procedure can sometimes hinder the ability to correctly detect a difference in population means.

Question

Quizplus · Accepted Answer

Including a blocking factor can reduce the error variance and increase the power of the test, but if the blocking factor is not relevant or incorrectly specified, it can introduce unnecessary complexity and reduce the ability to detect true differences in population means.

Including a Blocking Factor in the ANOVA Procedure Can Sometimes