Together with Pelle Guldborg Hansen and Caroline Drøgemüller Gundersen, I have a new article in Behavioural Public Policy. The paper is titled “Reporting on one’s behavior: a survey experiment on the nonvalidity of self-reported COVID-19 hygiene-relevant routine behaviors”. Here is the abstract:
Surveys based on self-reported hygiene-relevant routine behaviors have played a crucial role in policy responses to the COVID-19 pandemic. In this article, using anchoring to test validity in a randomized controlled survey experiment during the COVID-19 pandemic, we demonstrate that asking people to self-report on the frequency of routine behaviors are prone to significant measurement error and systematic bias. Specifically, we find that participants across age, gender, and political allegiance report higher (lower) frequencies of COVID-19-relevant behaviors when provided with a higher (lower) anchor. The results confirm that such self-reports should not be regarded as behavioral data and should primarily be used to inform policy decisions if better alternatives are not available. To this end, we discuss the use of anchoring as a validity test relative to self-reported behaviors as well as viable alternatives to self-reports when seeking to behaviorally inform policy decisions.
You can read the study here. You can read more about the study here. You can find the replication material here.