An investigator wanted to see whether packaging information affects the way teenagers rate the effectiveness of soap.The same soap was put in three packages: (a)a pink wrapper that says "For Keeping Your Skin Baby Soft";(b)a red wrapper that says "For Eliminating Acne";and (c)a white wrapper that says nothing.Each teenager was asked to rub his or her face with dirt and wash with soap A;each teenager then followed the same procedure for soaps B and then C.The time it took to get the face clean was recorded each time.What type of design is this?

Question

Quizplus · Accepted Answer

This is a repeated measures design because each teenager is tested with all three soap types, and the order in which they use the soaps is controlled. This design allows for comparison of the effectiveness of the different packaging information on the same subjects.

An Investigator Wanted to See Whether Packaging Information Affects the Way