Substance abuse is most likely when ________ factors are involved

In order for prompting and fading to lead to stimulus control, the prompts must be presented in the presence of:

a. the target behavior b. the discriminative stimulus c. the S-delta d. the reinforcer

Professor Crass tells her students that each human eye contains around _____ million rods.

A. 3 B. 50 C. 100 D. 150