This cluster shows how different ways of giving rewards change how fast and steady people or animals respond. It tells BCBAs that bigger or more frequent rewards do not always make better behavior, and past reward history can briefly change new learning. These studies help you pick and thin schedules wisely so skills stay strong and do not pause or slow down. Knowing these patterns keeps your treatment plans effective and efficient.
Reinforcement schedules are the rules that decide when and how often a reward comes. How you set those rules changes how fast, how steady, and how hard a person responds. Research on this topic is clear: different schedules produce different patterns of behavior, and those patterns are predictable. A BCBA who understands these patterns can pick the right schedule for each goal.
One of the biggest findings from this cluster is that reinforcement rate — how often rewards come — matters more than reinforcement magnitude — how big the reward is. When you want a behavior to keep going even when things get harder, schedule the richer component, not the bigger treat. Studies with adult humans show this is true for people, not just animals.
Another key point is that schedule history matters. Past experience with rich schedules can carry over and affect how someone responds on a new, leaner schedule. This is called behavioral momentum. It means that the history you build with a learner is not neutral. A learner who had a very rich history may respond more persistently when you thin — but it also means they may pause more when they see a signal that things are about to get lean.
Studies also show that giving clear, accurate instructions before a new schedule begins helps a lot. When people understand what schedule they are on, they respond more efficiently. This is a practical tool: rules and instructions can stand in for extended exposure to the contingency and get behavior on track faster.
Common questions from BCBAs and RBTs
Research says more frequent is more powerful when you want persistence. Reinforcement rate, not the size of the reward, is the main driver of resistance to change. If you need a behavior to hold up under disruption, increase how often you deliver rewards — not necessarily how big they are.
The learner may not have enough reinforcement history in that behavior to make it persist. Behavioral momentum research shows that skills with a richer history before thinning hold up better under lean conditions. Try building a denser reinforcement history before thinning aggressively.
Accurate instructions before a new schedule begins help a lot. Studies show that when learners know what the rules are, they respond more efficiently and with fewer errors. Give clear explanations of how the schedule works before you start — this is especially useful when moving to a new or more complex schedule.
Behavioral momentum is the tendency for a well-reinforced behavior to keep going even when disrupted or when reinforcement becomes leaner. Research shows it is built by a history of frequent reinforcement. For BCBAs, this means the reinforcement history you create in early sessions protects the skill in later ones.
Response duration is a sensitive measure that tracks reinforcement contingencies reliably. Studies show it responds to both immediate and delayed reinforcement the same way discrete response rate does. If rate is hard to measure cleanly for a skill, duration can give you the same information.