The concept describes a conditioning schedule where a behavior is not reinforced every time it occurs. Instead, reinforcement is provided only intermittently. For example, a child might not receive praise every time they share a toy, but only sometimes. This contrasts with continuous reinforcement, where the behavior is rewarded each instance it occurs.
This intermittent rewarding of behaviors has significant implications for learning and behavior modification. It leads to behaviors that are more resistant to extinction than those learned through continuous schedules. Historically, research in this area has demonstrated that behaviors reinforced intermittently persist even after the reinforcement is removed, a phenomenon referred to as the partial reinforcement effect. This understanding has been vital in fields such as education, therapy, and animal training due to its effectiveness in establishing long-lasting behavioral changes.