QUESTION: 25 Exam Topic: 1, Volume A

Three boys with autism, ages 710 years old, served as participants in a study. During baseline, staff used response blocking when five instances of aggression or head-banging occurred within 10 seconds, until attempts ceased for 1 minute. During baseline and treatment, each occurrence of aggression and head-banging was recorded daily and converted to the number of responses per hour. Treatment comprised a differential reinforcement of incompatible behavior (DRI) schedule coupled with response blocking after every head-banging or aggression. The staff initially applied the treatment to head-banging, while continuing to take a baseline on aggression. After noting treatment effects on head-banging, the staff then applied the treatment to aggression.

What is the independent variable?

DRI schedule with instruction on the incompatible behavior
DRI schedule and response blocking
rate of the incompatible behavior
number of head-bangs and aggressions per hour

Answer(s): B

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QUESTION: 26 Exam Topic: 1, Volume A

When demands are placed on Raoul, he is often observed to hit his head, bite his hand, or slap the therapist. These behaviors are reinforced by termination of the demands. Taken together, these behaviors comprise

an establishing operation.
a functional response class.
respondent behaviors.
a topographical response class.

Answer(s): B

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QUESTION: 27 Exam Topic: 1, Volume A

A stimulus is defined as

a change in behavior brought about by alterations of the physical environment.
a change in the environment that can affect behavior.
a change in the environment that elicits a response with or without prior conditioning.
any environmental event exclusive of private events.

Answer(s): B

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