Orne (1962) argues that every psychological experiment is a(n) ________ in which both participants and researchers are involved in a common undertaking.
A) island
B) social situation
C) naturalistic experiment
D) necessary but unpleasant event
Fill in the blank with the correct answer.
Question 2
Which confounding variable can ONLY occur in within-subjects studies?
A) regression to the mean
B) diffusion of treatment
C) sequence effects
D) testing