Peter goes to his university counseling center for evaluation and treatment of depressive symptoms. The most successful treatment will likely be:

A stimulus that acquires reinforcing power through its association with a primary reinforcer is called a_________ reinforcer.

A) delayed B) negative C) partial D) conditioned

To minimize observer influence, researchers can

A) limit their observations to children over the age of 12. B) tell participants what they are trying to study. C) ask individuals who are part of the child's natural environment to do the observing. D) tell participants that they must be serious and behave in a natural way.