Premack Principle¶

Strategy · All strategies
Evidence · 1 claim (1 mixed) · 3 studies (1 quant-synthesis, 1 review, 1 theoretical), q1–q4 · 1 of 3 report an effect size

Description¶

The Premack Principle states that a more probable behavior can reinforce a less probable behavior: access to an activity the learner already prefers is made contingent on completing a task the learner avoids. In practice, the instructor specifies an "if–then" contingency — "First finish your worksheet, then you may use the art station" — so that the preferred activity functions as a reinforcer for the target task. It derives from operant conditioning and the behavioral analysis of reinforcement Premack, D. (1965).

Design Implications¶

The principle works because response probability itself predicts reinforcement value: behaviors learners choose freely are effective rewards for behaviors they avoid [+M]. It converts abstract reward systems into concrete, activity-based contingencies that require no tokens or points, making it one of the simplest applied behavior techniques. Its effectiveness depends on the "then" activity genuinely being high-probability for the specific learner at that moment — preference is individual and shifts over time, so contingencies must be monitored and adjusted [~M]. Because it is an extrinsic contingency, overuse can undermine interest in the target activity itself Rewards perceived as controlling can reduce intrinsic motivation for the target activity. [~M].

Context¶

Requirements¶

• A reliably identified high-probability activity (observed via preference assessment or free-choice data)
• A clear, observable criterion for completing the low-probability task
• Immediate or near-immediate access to the preferred activity contingent on completion
• Consistent follow-through — the contingency must not be honored when the criterion is unmet

Constraints¶

• If the "then" activity is not actually preferred in that moment, the contingency loses reinforcing power [-M]
• Satiation erodes effectiveness: unlimited access to the preferred activity outside the contingency removes its value [-M]
• Emphasizing the contingency can shift learners' attribution of effort to the reward, reducing spontaneous engagement with the target task once rewards stop [~M]
• Poorly specified criteria invite negotiation and bargaining, which can function as escape from the task [-W]

Implementation Variability¶

• First/then schedules — verbal or visual "first X, then Y" boards, common in early childhood and special education
• Grandma's rule — home/classroom phrasing that frames the preferred activity as the natural next step rather than a bribe
• Activity schedules — sequences in which several low-probability tasks are chained before a single preferred activity
• Learner-selected reinforcers — students choose from a menu of preferred activities, increasing perceived autonomy [+W] within the contingency

Target Learners¶

• Young children, for whom activity-based contingencies are more concrete than points or grades [+M]
• Learners with autism or intellectual disabilities, where first/then visual contingencies are a core component of structured teaching approaches [+M]
• Reluctant writers, readers, or practicers who avoid specific high-effort tasks but have identifiable preferred activities
• Less appropriate for learners already intrinsically motivated by the task, where the contingency adds no value and may crowd out existing interest [~M]

Target Learning Goals¶

• Behavioral regulation: increasing time on task, task completion, and transitions
• Fluency building: sustaining practice on repetitive skill work (math facts, decoding, instrument practice)
• Not well suited to conceptual understanding or creative production, where quality depends on engagement rather than compliance

Instructions¶

1. Identify the low-probability target behavior and define a clear completion criterion (observable, countable).
2. Conduct a brief preference observation to confirm the high-probability activity is currently preferred.
3. State the contingency before the task begins, using first/then language: "First ___, then ___."
4. Deliver the preferred activity immediately upon meeting the criterion; withhold it if the criterion is not met, without extended negotiation.
5. Monitor response rates; rotate or refresh preferred activities to prevent satiation.
6. Fade the contingency as task engagement becomes self-sustaining, shifting toward naturally occurring consequences and autonomy [+M] support.

Related Strategies¶

• Token economies — generalize the same contingency structure using symbolic reinforcers exchangeable for preferred activities
• Behavior contracts — formalize the if–then contingency in writing with learner input
• Choice boards — embed learner choice into the reinforcement menu, softening the controlling aspect of the contingency

Examples¶

• Early literacy block: students complete 15 minutes of decodable text practice before accessing the classroom reading corner with high-interest books — using preferred reading as the reinforcer for skill-focused reading.
• TEACCH structured teaching: visual first/then schedules pair non-preferred work tasks with preferred sensory or leisure activities, a standard component of structured classrooms for learners with autism.
• Instrument practice: a teacher structures lessons so a student's preferred pop piece is rehearsed only after completing technique drills.

Key Sources¶

• Premack, D. (1965). Reinforcement theory. In D. Levine (Ed.), Nebraska Symposium on Motivation (Vol. 13, pp. 123–180). University of Nebraska Press.
• Premack, D. (1959). Toward empirical behavior laws: I. Positive reinforcement. Psychological Review, 66(4), 219–233. doi:10.1037/h0040891
• Cooper, J. O., Heron, T. E., & Heward, W. L. (2020). Applied behavior analysis (3rd ed.). Pearson.
• Deci, E. L., Koestner, R., & Ryan, R. M. (1999). A meta-analytic review of experiments examining the effects of extrinsic rewards on intrinsic motivation. Psychological Bulletin, 125(6), 627–668. doi:10.1037/0033-2909.125.6.627
• Timberlake, W., & Farmer-Dougan, V. A. (1991). Reinforcement in applied settings: Figuring out ahead of time what will work. Psychological Bulletin, 110(3), 379–391. doi:10.1037/0033-2909.110.3.379