A Psychologist Discovers That Moderate, but Unpredictable, Noise During a Cognitively

A psychologist discovers that moderate, but unpredictable, noise during a cognitively demanding task leads to a significant increase in negative evaluations of their partners by participants doing the task in cooperation with another student. Whether a similar level of unpredictable noise occurring in a college dormitory will have an adverse effect on students' evaluations of their roommates is an issue of

A) sample generalization.
B) a density effect.
C) an interaction.
D) variable representativeness.