- Before (Antecedents): instructor claims «John, take a seat. «
- During: (Behavior): John screams.
- After: (effects): instructor claims «No screaming» and takes John to time-out.
Antecedents reveal concerning the context for the incident and may even assist us to determine causes which tripped a behavior that is particular. An antecedent can be an action done because of the pupil or by other people when you look at the environment.