To investigate the effects of a new medication on weight loss among obese patients and protect for internal validity, a researcher could utilize

Another example of the power of classical conditioning occurs when _____

a) a child is given a treat for finishing chores and increases that behavior. b) we learn a skill by watching someone else, which makes our mirror neurons fire. c) the neighborhood where we got high makes us crave the drug. d) we teach our dog to sit by using rewards.

Based on the principles of psychological reactance, what should a mother say to her daughter who wants to have her nose pierced?

a. "I won't be seen with you in public if you pierce your nose." b. "Wait until your father hears about this!" c. "You'd hate it if I took away your driving privileges." d. "Please think about how you'll feel when you're thirty with a hole in your nose."