Evidence map›Paper›PMID 34495566›Full record

ArticleBritish journal of health psychology2021

Social nudges for vaccination: How communicating herd behaviour influences vaccination intentions.

Aleksandra Lazić, Kalina Nikolova Kalinova, Jali Packer, Riinu Pae, Marija B Petrović, Dora Popović, D Elisabeth C Sievert, Natalie Stafford-Johnson

Abstract read
In one paragraph

Article in British journal of health psychology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Aleksandra LazićUniversity of Belgrade, Serbia.ORCID 0000-0002-0433-0483
Kalina Nikolova KalinovaSofia, Bulgaria.ORCID 0000-0001-8444-0959
Jali PackerKing's College London, UK.ORCID 0000-0002-3771-183X
Riinu PaeUniversity College London, UK.ORCID 0000-0003-2044-0102
Marija B PetrovićUniversity of Belgrade, Serbia.ORCID 0000-0001-6422-3957
Dora PopovićUniversity of Zagreb, Croatia.ORCID 0000-0002-3716-8435
D Elisabeth C SievertHamburg University of Applied Sciences, Germany.ORCID 0000-0001-7187-8927
Natalie Stafford-JohnsonDublin, Ireland.ORCID 0000-0003-2780-8168

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThis Registered Report attempted to conceptually replicate the finding that communicating herd immunity increases vaccination intentions (Betsch, et al., 2017, Nat. Hum. Behav., 0056). An additional objective was to explore the roles of descriptive social norms (vaccination behaviour of others) and the herd-immunity threshold (coverage needed to stop disease transmission).

designAn online experiment with a 2 (herd-immunity explanation: present vs. absent) × 3 (descriptive norm: high vs. low vs. absent) × 2 (herd-immunity threshold: present vs. absent) between-subjects fractional design.

methodsSample consisted of 543 people (aged 18-64) residing in the United Kingdom. Participants first received an explanation of herd immunity emphasising social benefits (protecting others) in both textual and animated-infographic form. Next, they were faced with fictitious information about the disease, the vaccine, their country's vaccination coverage (80% or 20%), and the herd-immunity threshold (90%). Vaccination intention was self-rated.

resultsCompared to the control, communicating social benefits of herd immunity was effective in increasing vaccination intentions (F(1,541) = 6.97, p = .009, Partial Eta-Squared = 0.013). Communicating the descriptive norm or the herd-immunity threshold alongside the herd-immunity explanation demonstrated no observable effect.

conclusionCommunicating social benefits of herd immunity increased self-reported vaccination intentions against a fictitious disease, replicating previous findings. Although this result is positive, the practical relevance may be limited. Further research into the effect of social nudges to motivate vaccination is required, particularly with respect to the recent pandemic context and varying levels of vaccine hesitancy.

Indexed as

IntentionVaccinationHumansImmunity, HerdPandemicsSocial Normsexperimenthealth communicationherd immunityimmunisationregistered reportsocial normsvaccination intention

Identifiers

PMID34495566
PMCPMC8646271

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.