(Scenario I) Suppose each treatment condition described in Scenario I was conducted sequentially with the first treatment tested in the fall semester, and the second in the spring semester. Following testing of all treatment conditions, the participants received payment for their participation in the form of a gift card. Some received a gift card to a coffee shop and others received one to a megastore. Along with their gift card, participants also received a statement debriefing them of the actual intent of the study. Which of the following presents a potential confound?
A) debriefing letter
B) gift card type
C) month of testing
D) All are confounds.

Question

Quizplus · Accepted Answer

The month of testing (fall for the first treatment and spring for the second) introduces a potential confound due to seasonal variations that could affect participants' responses or behaviors differently across the two treatment conditions.

(Scenario I) Suppose Each Treatment Condition Described in Scenario I