Bayesian Peer Calibration with Application to Alcohol Use. (4th March 2016)

• Record Type: Journal Article
• Authors: Ott, Miles Q.; Hogan, Joseph W.; Gile, Krista J.; Linkletter, Crystal; Barnett, Nancy P.
• Is Part Of: Statistics in medicine. Volume 35:Number 19(2016)
• Page Start: 3303
• Page End: 3318
• Publication Date: 2016-03-04
• Subjects: Alcohol use -- bayesian comparative calibration -- multiple sources -- peer‐reports -- self‐reports; Medical statistics -- Periodicals; Statistique médicale -- Périodiques; Statistiques médicales -- Périodiques; 610.727
• DOI: 10.1002/sim.6925
• Languages: English
• ISSNs: 0277-6715

Abstract

Abstract : Peers are often able to provide important additional information to supplement self‐reported behavioral measures. The study motivating this work collected data on alcohol in a social network formed by college students living in a freshman dormitory. By using two imperfect sources of information (self‐reported and peer‐reported alcohol consumption), rather than solely self‐reports or peer‐reports, we are able to gain insight into alcohol consumption on both the population and the individual level, as well as information on the discrepancy of individual peer‐reports. We develop a novel Bayesian comparative calibration model for continuous, count, and binary outcomes that uses covariate information to characterize the joint distribution of both self and peer‐reports on the network for estimating peer‐reporting discrepancies in network surveys, and apply this to the data for fully Bayesian inference. We use this model to understand the effects of covariates on both drinking behavior and peer‐reporting discrepancies. Copyright © 2016 John Wiley & Sons, Ltd.