This is a procedure to identify the stimuli and activities that a student finds reinforcing.

A consequence that increases the future probability of the behavior that immediately preceded it. The only way a reinforcer can be identified is by the effect it has on future behavior.

One individual attempts to interrupt a student engaging in a behavior (often an inappropriate behavior) and attempts to engage him/her in an alternate (generally more appropriate) behavior.

A measure of frequency across a specific period of time. For example, a child emits seven initiations per hour.