Does source credibility matter for point-of-decision prompts? A quasi-experimental field study to increase stair use

Ivan P Lee and Richard M Walker

PLOS ONE, 2019, vol. 14, issue 11, 1-19

Abstract: A quasi-experimental field study was undertaken to examine whether the source credibility of point-of-decision (POD) prompts would affect their effectiveness in increasing stair use. POD prompts attributed either to a more credible source, a less credible source, or nothing were randomly installed in three student halls of residence at a public university in Hong Kong (plus a control). The stair and elevator use of residents were recorded by view-from-top surveillance cameras and counted using motion-detection software, resulting in 14,189 observations. The findings show that all the POD prompts can yield, as hypothesized, a significant positive effect on stair use. The relative increase in stair use was 2.49% on average. However, contrary to our second hypothesis, the POD prompt attributed to the more credible source was not the most effective intervention. The implications of these findings are discussed in conclusion.

Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0225520

DOI: 10.1371/journal.pone.0225520

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