In a between-subjects design, large individual differences can produce ____.
A) large between-treatment differences, making it easier to see real treatment effects
B) small within-treatment variance, making it easier to see real treatment effects
C) large within-treatment variance, making it difficult to see real treatment effects
D) small between-treatment difference, making it difficult to see real treatment effects

Question

Quizplus · Accepted Answer

In a between-subjects design, large individual differences can produce large within-treatment variance, making it difficult to see real treatment effects. This is because the individual differences may be masking the treatment effect, as some participants may naturally do better or worse regardless of the treatment given, leading to a lack of consistency in the outcomes within each treatment group.

In a Between-Subjects Design, Large Individual Differences Can Produce ____