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Writing about regret made students want a flu shot more, but not get one

HelpedThe short version

Students who wrote why they would regret no flu shot wanted one more for their own reasons than readers.

A student sits on a windowsill writing in a notebook while an unopened adhesive bandage lies untouched in front of her.
263
US college students without a flu shot
Randomised
groups picked at random
Self-rated
people rated themselves
1 tool
tested

The study

  1. Who took part

    263 students at a US university who had not had a flu shot that year. Most were women, and they were about 20 on average. 89 wrote about regret, 88 answered questions and 86 just read facts.

  2. What they did

    In one online session, everyone read about the flu and the flu shot. One group wrote why they might regret skipping the shot if they later got the flu. Another group answered six questions about how much they would regret it. The third group just read the facts.

  3. What happened

    Students who wrote about regret wanted the shot more for their own reasons than the group that just read. The gap was small. Answering the regret questions made no difference. Neither group planned to get the shot more. A few months later, about 36 in 100 writers said they got the shot, against 32 in 100. That was not a clear difference.

What the study found

  1. Students who wrote why they would regret no flu shot wanted one more for their own reasons than readers.

    Randomised trial of 263 US college students without a flu shot · vs the same flu facts with no regret task · they rated themselves

  2. No differenceMotivation

    Writing about regret did not make students plan to get a flu shot more than just reading the facts.

    Randomised trial of 263 US college students without a flu shot · vs the same flu facts with no regret task · they rated themselves

  3. No differenceGoals

    Students who wrote about regret were no more likely to get a flu shot in the next few months.

    Randomised trial of 263 US college students without a flu shot · vs the same flu facts with no regret task · they rated themselves

How solid is this?

  • Groups picked at random
  • Plan registered in advance
  • People rated themselves

Source

Testing autonomous motivation as a mechanism of anticipated regret intervention techniques for seasonal flu vaccination (2025)

DOI: 10.1093/abm/kaaf053 (opens in a new tab)

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