Karen is conducting an experiment examining how different flavors of toothpaste influence subjects' perception of the taste of a juice her company sells.Each subject brushed his or her teeth with one flavor,tasted the juice,indicated how the juice tasted based on several items on a survey,and then ate a cracker.Then the subject brushed his or her teeth with another flavor of toothpaste and tasted the juice,gave their response,and ate a cracker again.They did this with four different flavors of toothpaste.This is an example of which type of experimental design?

Question

Quizplus · Accepted Answer

This is an example of a within-subjects experimental design, where each subject is exposed to all four flavors of toothpaste and evaluates the juice taste after each trial. This design allows for better control of individual differences between subjects and reduces variability in results.

Karen Is Conducting an Experiment Examining How Different Flavors of Toothpaste