A doctor's warmth and competence changed how patients read normal test results

Design

Preregistered online experimental analog study, 2 x 2 (warmth by competence)

Population

349 online participants with medium somatic symptom burden (mean age 29.9 years, 79% female)

Primary outcome

Rated likelihood of serious disease after a normal test result

Effect

Lower with high warmth and high competence; the abstract gives no effect size

Reassurance after a normal test is among the commonest things family physicians do, and it often fails. This preregistered experiment asked whether the doctor's manner matters. A total of 349 online participants (mean age 29.9 years, 79% female) with a medium burden of physical symptoms read a symptom vignette and then watched a recorded doctor reporting that tests showed no abnormality. The information was identical each time; only the doctor's warmth (high or low) and competence (high or low) varied.

Participants rated serious disease as less likely when the doctor showed both high warmth and high competence. They were also less inclined to want a second opinion or more tests. A mediation analysis suggested that manner worked partly by changing how much weight participants gave to the test result itself.

This was a vignette-based online study in a young, mostly female convenience sample. It measured stated beliefs and intentions, not real behaviour in clinic, and it did not test specific phrases. It does support what many clinicians already feel: a normal result lands better when the patient trusts the person giving it.

• State the result and what it rules out, in plain words, before moving on.
• Show that you have taken the symptoms seriously, then explain why the test makes serious disease less likely.
• Expect a normal result to reassure less when the patient doubts the doctor, and ask what they are still worried about.
• Do not rely on the test alone to settle the worry; the delivery matters.

Why it matters

It suggests that a normal test is not self-explanatory, and that how it is delivered can decide whether the patient comes back for another one.

Don't overread it

This was an online analog study with stated beliefs, not a trial of real consultations or of repeat attendance.

The statistics, in plain English

In an experiment where everything is held constant except the doctor's manner, differences in ratings can be attributed to the manner. The limit is the setting: watching a video online is not the same as being the patient in the room.

Read the rest in the app

You have read your two free briefings this month. The app carries all 27 specialties, every morning, free — and this finding is waiting in it.

Get Daily Doctor — free

Scan to keep reading on your phone. No account needed to start.