Antecedent

An Antecedent in Applied Behavior Analysis (ABA) refers to any event or condition that occurs immediately before a behavior. Antecedents can trigger or cue a behavior, and understanding them helps identify why a behavior occurs.

Example:

In a classroom, the teacher says, “It’s time for math,” and the student begins tapping their pencil. The teacher’s instruction (“It’s time for math”) is the antecedent that triggered the tapping behavior.

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