Xavier does a study in which he compares group brainstorming to individual brainstorming in face-to-face versus computer-mediated (i.e., chat room) communication conditions. He finds that groups are generally less productive at brainstorming than individuals, but that in chat room conditions, the difference is much less. The fact that the effect of the group versus individual condition depends on which communication medium was used illustrates a(n) ____.
A) statistically significant result
B) correlation coefficient
C) main effect
D) interaction effect

Question

Quizplus · Accepted Answer

The fact that the effect of the group versus individual condition depends on which communication medium was used illustrates an interaction effect. This means that the effect of one variable (group vs. individual) on the outcome (productivity) depends on the level of another variable (face-to-face vs. chat room communication).

Xavier Does a Study in Which He Compares Group Brainstorming