The effect of rules on differential reinforcement of other behavior.

The team tested how clear rules change the way DRO works. They compared immediate treats with delayed treats. Some learners heard the rule out loud. Others only got quiet hints.

Each person got both kinds of DRO. The order flipped across sessions. The researchers counted how long each person stayed with the harder, delayed plan.

When the rule was spoken aloud, most people stuck with the delayed DRO. They waited for the bigger payoff. When the rule stayed unspoken, people bounced back to the quick reward.

Clear rules created instructional control. Hidden rules did not.

Harte et al. (2017) asked a similar question. They gave direct rules or let people figure rules out. Direct rules kept people following them even when the payoff flipped. Both studies show: say the rule plain.

Richman et al. (2001) and May (2019) also use differential payoffs, but they let students run the show. Their focus was who gives the reward, not how the rule is said. The 2013 paper adds the missing piece: rule clarity beats schedule tweaks.

No clash here. The older papers just looked at different levers.

If you run DRO with delayed reinforcement, speak the rule first. Write it, say it, point to it. Don’t trust hints or hopes. One sentence like, “Wait five minutes, then you earn the iPad,” can save you weeks of schedule hopping. Try it at the next tantrum drop-off and watch the learner stay put.