Which of the following is NOT an advantage of the changing criterion design?

Which of the following is NOT an advantage of the changing criterion design?
 
  A. Withdrawal of treatment is not necessary
   B. Generalization of behavior change is monitored within the design
   C. It is a good design to evaluate contingency programs to increase/decrease behavior
   D. Gradual change in target behavior results in poor outcomes for maintenance

Ques. 2

When might a B-A-B design be more appropriate than an A-B-A-B design? Cite an appropriate reason.
 
  What will be an ideal response?

Ques. 3

How long should each phase be in a changing criterion design?
 
  A. Phases should be long enough to allow stable responding
   B. The length of the phase should be varied if possible
   C. Phases should be brief enough to see a positive response
   D. Both A and B