sayette lcd panel free sample
Our measure of urge to smoke was self-reported. We purposely asked participants about their urge to smoke as the first question in the survey after the shopping task was completed to immediately capture the influence of the display. Although this measure has been used in virtual reality studies,28 we could not determine whether some other factor influenced participants’ urge to smoke, such as the presence of another smoker or tobacco products when participants were taking the survey. Finally, our results have limited generalizability because the ResearchNow panel is a convenience sample. However, because the purpose of our study was to test the potential impact of a display ban and graphic health warning sign at the POS, our primary concern was to minimize threats to internal validity. Using an online panel like ResearchNow allowed us to access a large number of adults who could be screened systematically to identify current smokers and recent quitters and to randomize them to the virtual store conditions via the Web.