Reward induced response covariation: Side effects revisited.

Pickering et al. (1985) wrote a short, sharp reply to an earlier paper.

The authors restated that reward procedures can hurt as well as help.

They warned readers not to shrug off the dark side of reinforcement.

The paper found no new data.

It found a need to keep talking about side effects.

The main finding: ethics still matter when you pick reinforcers.

Iqbal (2002) shows the warning is real. Staff quit a DRI plan for an adult with ID because it felt wrong. Gains vanished.

Nevin et al. (2017) move the talk forward. They ask how we could ever test positive vs. negative reinforcement without hurting anyone.

Washio et al. (2018) take the same worry to prenatal clinics. They say incentives can cut smoking, but only if moms see the plan as fair.

Together these papers turn the 1985 caution into a living checklist: Will the client, the staff, and the family all sign off?

Before you run a token board, a sticker chart, or a DRO, pause. Ask who might feel coerced or singled out. If you can’t sell the plan to everyone, revise it. Ethics first, data second.