In a taste test, the participants are asked to taste each of the three types of pies (the order is counterbalanced), and then rate how much they like each flavor. To compare the average ratings for each type of pie, which ANOVA model is most appropriate?
A) One-factor random-effects model
B) Two-factor random-effects model
C) Two-factor mixed-effects model
D) One-factor repeated measures design
E) Two-factor split-plot design

Question

Quizplus · Accepted Answer

The most appropriate ANOVA model for comparing the average ratings of each type of pie, where each participant tastes all three types and the order is counterbalanced, is the one-factor repeated measures design. This design accounts for the fact that the same subjects are used for all treatments (in this case, pie flavors), which controls for variability between subjects.

In a Taste Test, the Participants Are Asked to Taste