An Egocentric Network Contact Tracing Experiment: Testing Different Procedures to Elicit Contacts and Places

Andrew Pilny and C. Joseph Huber
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Andrew Pilny: Department of Communication, College of Communication & Information, University of Kentucky, Lexington, KY 40506, USA
C. Joseph Huber: Department of Communication, College of Communication & Information, University of Kentucky, Lexington, KY 40506, USA

IJERPH, 2021, vol. 18, issue 4, 1-11

Abstract: Contact tracing is one of the oldest social network health interventions used to reduce the diffusion of various infectious diseases. However, some infectious diseases like COVID-19 amass at such a great scope that traditional methods of conducting contact tracing (e.g., face-to-face interviews) remain difficult to implement, pointing to the need to develop reliable and valid survey approaches. The purpose of this research is to test the effectiveness of three different egocentric survey methods for extracting contact tracing data: (1) a baseline approach, (2) a retrieval cue approach, and (3) a context-based approach. A sample of 397 college students were randomized into one condition each. They were prompted to anonymously provide contacts and populated places visited from the past four days depending on what condition they were given. After controlling for various demographic, social identity, psychological, and physiological variables, participants in the context-based condition were significantly more likely to recall more contacts (medium effect size) and places (large effect size) than the other two conditions. Theoretically, the research supports suggestions by field theory that assume network recall can be significantly improved by activating relevant activity foci. Practically, the research contributes to the development of innovative social network data collection methods for contract tracing survey instruments.

Keywords: contact tracing; ego networks; experimental design; social networks; field theory (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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