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Hallsworth et al., 2016: Providing feedback about high prescription rates reduced prescriptions for antibiotics among general practioners over six months


Hallsworth, M., Chadborn, T., Sallis, A., Sanders, M., Berry, D., Greaves, F., ... & Davies, S. C. (2016). Provision of social norm feedback to high prescribers of antibiotics in general practice: a pragmatic national randomised controlled trial. The Lancet, 387(10029), 1743-1752.
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A letter from England’s Chief Medical Officer informing General Practitioners that prescribed antibiotics at a higher rate than 80% of the practices in their area that they did so and suggesting ways to reduce unnecessary prescriptions reduced prescriptions for antibiotics over the next 6 months (during flu season) from 131.25 to 126.98 per 1000 people. Across the 1581 practices randomized to condition, the treatment was estimated to reduce the number of antibiotic prescriptions by 73,406, a savings of £92,356 in direct prescription costs.

Psychological Process:

Psychological Process 2:


What is the Person Trying to Understand?

What Desired Meaning is At Stake?

What Desired Meaning is At Stake?

What About it?

Approach to Desired Meaning

Approach to Desired Meaning


Psychological Question Addressed

Psychological Question Addressed

Psychological Question Addressed

Psychological Process 3:

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Greg Walton & Timothy Wilson