The Case of Caitlin, Used in the Text, Demonstrated That

Multiple Choice

The case of Caitlin, used in the text, demonstrated that the psychologist's intervention for trichotillomania was effective when applied in an ABAB reversal design. In this case, what signaled the success of the intervention?

A) The decrease in targeted behaviour during the A phase.
B) The increase in targeted behaviour during the B phase.
C) The increase in targeted behaviour during the A phase.
D) The decrease in targeted behaviour during the B phase.