Investigating Single- Versus Multiple-Source Approaches to Communicating Health Messages Via an Online Simulation

Abstract

Purpose: To assess whether exposing drinkers to information about the alcohol–cancer link via multiple and diverse sources in an online simulation produces larger improvements in attitudes and intentions relative to exposure to a single source of information. Design: Experimental; unequal randomization with respondents allocated to either the single-source (20%) or multiple-source condition (80%). Alcohol-related behavioral intentions were assessed preexposure and postexposure. Setting: Australia. Participants: A total of 2087 drinkers consuming alcohol at least twice per month. Measures: Scales were used to assess attitudes toward the messages (believability, convincingness, and personal re..