MsHernandez Is Concerned About Brian, a Student in Her High

question 5

Multiple Choice

Ms.Hernandez is concerned about Brian, a student in her high school chemistry class who rarely interacts with other students.Ms.Hernandez decides to smile at Brian on those occasions when she happens to notice him talking with another student.Yet after three weeks she sees little change in his behavior.Based on this information, which one of the following is definitely wrong with Ms.Hernandez's approach?

• A)A smile is not an effective reinforcer.
• B)Brian has little to gain by changing his behavior.
• C)Social interaction is not an intrinsically reinforcing activity.
• D)Brian is receiving intermittent rather than continuous reinforcement.

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Definitions:

Motor tremors

Involuntary, rhythmic muscle movements involving to-and-fro movements of one or more parts of the body.

Pia mater

The delicate innermost layer of the meninges that directly covers the surface of the brain and spinal cord, providing it with blood vessels.

Meninges

The three protective membranes that cover the brain and spinal cord, consisting of the dura mater, arachnoid mater, and pia mater.

Subarachnoid space

The space surrounding the brain and spinal cord, situated between the arachnoid membrane and the pia mater, which contains cerebrospinal fluid.