When a food company tests a new product by having one group of experimental subjects taste this product first and then taste a competitor's product second,while a second group of experimental subjects tastes these two products in the reverse order,the experimental design has been:
A)counterbalanced
B)reversed
C)confounded
D)validated

Question

Quizplus · Accepted Answer

The experimental design described is a counterbalanced design, where the order of product tasting is reversed for the two groups to control for the potential bias of order effects. This helps to ensure that any observed differences in preferences between the two products are not simply due to the order in which they were tasted. Reversing the order of product testing between groups is a common technique in sensory evaluation studies.

When a Food Company Tests a New Product by Having