@article{discovery10158627,
         journal = {Behavioural Public Policy},
            note = {Copyright {\copyright} The Author(s), 2022. Published by Cambridge University Press. This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution and reproduction, provided the original article is properly cited.},
       publisher = {Cambridge University Press (CUP)},
           title = {Effect of visualising and re-expressing evidence of policy effectiveness on perceived effectiveness: a population-based survey experiment},
            year = {2022},
           month = {October},
            issn = {2398-063X},
             url = {https://doi.org/10.1017/bpp.2022.32},
          author = {Reynolds, James P and Hobson, Alice and Ventsel, Minna and Pilling, Mark A and Marteau, Theresa M and Hollands, Gareth J},
        abstract = {Communicating evidence that a policy is effective can increase public support although the effects are small. In the context of policies to increase healthier eating in out-of-home restaurants, we investigate two ways of presenting evidence for a policy's effectiveness: (i) visualising and (ii) re-expressing evidence into a more interpretable form. We conducted an online experiment in which participants were randomly allocated to one of five groups. We used a 2 (text only vs visualisation) {$\times$} 2 (no re-expression vs re-expression) design with one control group. Participants (n = 4500) representative of the English population were recruited. The primary outcome was perceived effectiveness and the secondary outcome was public support. Evidence of effectiveness increased perceptions of effectiveness (d = 0.14, p \< 0.001). There was no evidence that visualising, or re-expressing, changed perceptions of effectiveness (respectively, d = 0.02, p = 0.605; d = ?0.02, p = 0.507). Policy support increased with evidence but this was not statistically significant after Bonferroni adjustment (d = 0.08, p = 0.034, {\ensuremath{\alpha}} = 0.006). In conclusion, communicating evidence of policy effectiveness increased perceptions that the policy was effective. Neither visualising nor re-expressing evidence increased perceived effectiveness of policies more than merely stating in text that the policy was effective.},
        keywords = {policies, acceptability, obesity, nudge, communication}
}