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.
Question 2
Only one of the following consequences has been shown to be an effective and appropriate punishment for most students. Which one?
a. Scolding
b. Extra homework
c. Suspension from school
d. Embarrassment in front of classmates
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