Nelda is fearful of public places and has managed to stay "at home" for the last three years. She and her therapist have developed a strategy. During the first week, she will go to the front door and open it and look outside. If she can remain calm, the goal for the second week is stepping on to the front porch. They are using _______________. 


A. systematic desensitization

B. operant conditioning

C. aversive conditioning

D. contingency contracting
i cant seem to figure this one out.. could it be B?

If you can't find the concepts in your text, try Googling them.

I searched Google under the key words "systematic desensitization" to get these possible sources:

http://www.google.com/search?client=safari&rls=en&q=systematic+desensitization&ie=UTF-8&oe=UTF-8

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.