Frank Observes and Tracks Garrett's Behavior for Four Days to Determine

Multiple Choice

Frank observes and tracks Garrett's behavior for four days to determine how often he actually does leave his materials behind. He then introduces a required assignment book strategy to increase his ability to keep track of his class materials. Frank continues to observe Garrett's behavior. However, under the assignment book strategy, Garrett's behavior does not change. Frank decides that he will also require that Garrett obtain signatures from his teachers and parents in his assignment book and observes improved behavior. After four weeks, Frank removes the required assignment book and signature and observes and records Garrett's behavior for a week. In Frank's study, the signed assignment book represents which of the following?

A) A
B) B
C) S
D) T