1. Compare the client’s initial retrospective reports about the occurrence of the target behavior with his or her score on an instrument designed to measure the target. 2. If reactivity still appears...

1. Compare the client’s initial retrospective reports about the occurrence of the target behavior with his or her score on an instrument designed to measure the target.

2. If reactivity still appears to be high, consider an independent program to teach the client to record more accurately, or reconsider your measurement package.