Incentivizing recovery: Why contingency management works to treat addiction, with Lara Coughlin, PhD, and Michael McDonell, PhD

In a 1990s study, researchers placed a line of cocaine in front of people who used the drug and asked them to choose: the cocaine or five cents. Eighty percent chose the cocaine. When the cash offer rose to two dollars, about eighty percent chose the money. That finding — that a modest, immediate reward can outweigh the pull of a potent substance — is the core insight behind contingency management (CM), a behavioral treatment for addiction that psychologists have studied for decades but that remains surprisingly hard to access.

How contingency management works

Contingency management is built on operant conditioning: if you want someone to change a behavior, the most effective tool is positive reinforcement. In practice, this means giving people tangible rewards — typically gift cards worth $10 to $20 — each time they provide a negative drug test. The key is immediacy. A $10 reward today is far more powerful than a promise of $100 in a year, because it directly counterbalances the immediate reinforcing effects of drug use. As Dr. Lara Coughlin explains, "Catching people doing good is not always our model within the addiction care space." Contingency management flips that script: instead of punishing relapse, it systematically rewards recovery-oriented behavior.