Confirmatory factor analysis comparing incentivized experiments with self-report methods to elicit adolescent smoking and vaping social norms: MECHANISMS study

Jennifer M. Murray, Erik Kimbrough, Erin L. Krupka, Abhijit Ramalingam, Rajnish Kumar, Joanna McHugh Power, Sharon Sanchez-Franco, Olga L. Sarmiento, Frank Kee and Ruth F. Hunter

No 20-10, Working Papers from Department of Economics, Appalachian State University

Abstract: Introduction: Many adolescent smoking prevention programmes target social norms, typically evaluated with self-report, susceptible to social desirability bias. An alternative approach with little application in public health are experimental norms elicitation methods. Methods: Using the Mechanisms of Networks and Norms Influence on Smoking in Schools (MECHANISMS) study baseline data, from 12-13 year old school pupils (n=1656) in Northern Ireland and Bogotá (Colombia), we compare two methods of measuring injunctive and descriptive smoking and vaping norms: (1) incentivized experiments, using monetary payments to elicit norms; (2) self-report scales. Confirmatory factor analysis (CFA) examined whether the methods measured the same construct. Paths from exposures (country, sex, personality) to social norms, and associations of norms with (self-reported and objectively measured) smoking behavior/intentions were inspected in another structural model. Results: Second-order CFA showed that latent variables representing experimental and survey norms measurements were measuring the same underlying construct of anti- smoking/vaping norms (Comparative Fit Index=0.958, Tucker Lewis Index=0.951, Root Mean Square Error of Approximation=0.030, Standardized Root Mean Square Residual=0.034). Adding covariates into a structural model showed significant paths from country to norms (second-order anti-smoking/vaping norms latent variable: standardized factor loading [ß]=0.30, standard error [SE]=0.09, p

Date: 2020
New Economics Papers: this item is included in nep-exp
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