Which of the following stimuli could be used in an intradimensional discrimination procedure?
A)S+ = bright red light: S- = no light
B)S+ = bright red light: S- = bright yellow light
C)S+ = bright red light: S- = tone
D)S+ = bright red light: S- = white key light with black bar

Question

Quizplus · Accepted Answer

In an intradimensional discrimination procedure, the S+ and S- stimuli should only differ on one dimension (in this case, color). Option A only has one stimulus with no light, which cannot serve as a discrimination stimulus. Option C has two different types of stimuli (color and sound), violating the "one dimension" rule. Option D has two dimensions (color and shape) and may also confuse the subject. Option B has two stimuli that only differ on the color dimension, making it the best choice for intradimensional discrimination.

Which of the Following Stimuli Could Be Used in an Intradimensional