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

Autoři: Ivan P. Lee aff001;  Richard M. Walker aff002
Působiště autorů: Center for Experimental and Behavioral Public Administration, School of Public Affairs and Administration, Rutgers University–Newark, Newark, New Jersey, United States of America aff001;  Chan Hon-pun Professor in Behavioural and Policy Sciences, Laboratory for Public Management and Policy, Department of Public Policy, City University of Hong Kong, Hong Kong, China aff002
Vyšlo v časopise: PLoS ONE 14(11)
Kategorie: Research Article
doi: 10.1371/journal.pone.0225520


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.

Klíčová slova:

Behavior – Behavioral and social aspects of health – Collective human behavior – Facebook – Hong Kong – Motivation – Physical activity – Research design


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