Question

when veronica is unkind to her younger brother sammy, her parents instruct her to do all of sammys chores. afterward, veronica is more attentive to how she treats sammy. in this case, the extra chores are a
a positive reinforcer.
b negative reinforcer.
c positive punishment.
d negative punishment.

Explanation:

Positive punishment involves adding an aversive stimulus (here, extra chores) to decrease an unwanted behavior (unkindness to Sammy). Reinforcers (positive/negative) increase behavior; negative punishment removes a pleasant stimulus (not the case here).

Answer:

C. positive punishment.