A changing criterion design would be appropriate to use in the ...

[anshika]

A changing criterion design would be appropriate to use in the following instances EXCEPT:
 
  A. When the target behavior can change gradually in a step-wise fashion
   B. When the behavior is already in the subject's repertoire and needs to be increased or decreased
   C. When the treatments are sufficiently different from each other
   D. When the effects of contingent reinforcement or punishment procedures need to be evaluated

Question 2

The terms reversal and withdrawal designs are often used interchangeably although, they do, in fact, have different meanings. Explain the difference in the two design types.
 
  What will be an ideal response?

[l.stuut]

Answer to Question 1

C

Answer to Question 2

Both designs are A-B-A-B designs. A reversal design involves actively trying to reverse the effects of the intervention to encourage responding of the target behavior to revert to or at least towards baseline levels during the second A phase. For example, a student who has decreased his instances of talking out in class might have whatever original procedures once again instituted during the second A phase that were present in the original A (baseline phase). That is, the teacher provides attention to the student each time he talks out resulting in a rapid increase once again in talking out. The reintroduction of the intervention (the second B phase), if it replicates the success in the first B phase, provides an even stronger demonstration of the functional relationship. However, withdrawal designs where the intervention is removed but there is not an active attempt to encourage returns to baseline levels in the second A phase are much more commonly used.

[anshika]

Thanks for the timely response, appreciate it

[raenoj]

Excellent