In a classic study, Guttman and Kalish trained pigeons to peck a disc of a particular color, and then gave them the opportunity to peck ________.
A) discs of various colors
B) discs of various shapes
C) discs of various sizes
D) objects other than discs

Question

Quizplus · Accepted Answer

The study trained pigeons to peck a specific disc color, which indicates that the following options B, C, and D wouldn't be applicable since they deal with other attributes such as shape, size, or object type. Therefore, the pigeons were given discs of various colors to choose from, making option A the correct answer.

In a Classic Study, Guttman and Kalish Trained Pigeons to Peck