A theater reported that their highest beverage sales this year occurred during showings of The Great African Desert.However, we cannot conclude that the film affected beverage consumption because
A) the placebo effect was not considered.
B) only a correlation can establish causation.
C) no correlation was computed.
D) there was no control group.

Question

Quizplus · Accepted Answer

Without a control group, it's difficult to determine if the film itself influenced beverage sales or if other factors were at play.

A Theater Reported That Their Highest Beverage Sales This Year