Each BST procedure is most often used separately to teach skills

Dee Dee taught his dog Bosco to roll over whenever he heard the command "Spin!" After a while Dee Dee got bored with the trick, and allowed Bosco's behavior to extinguish

However, while watching Jeopardy! several months later, Dee Dee got excited by the answer "Clothes in a dryer" and shouted out "What is ‘spin?!'" at which point Bosco flipped around like a circus performer. Which principle of classical conditioning does this example illustrate? a) spontaneous recovery b) higher-order conditioning c) extinction d) stimulus generalization

All of the following are important to replication across different situations and people EXCEPT to

a. test if results are true across different types of people. b. test if results are true for different situations. c. test if results are externally valid across people and situations. d. enhance the internal validity of all experiments through random selection and assignment.