Limitations and Strengths
ASH
This study has some limitations. First, there were differences between the youth and adult surveys in the wording of the items assessing outcomes, as well as vaping and smoking status. The ASH Youth Survey measure asked respondents about interest among people their age; therefore, responses did not represent participants’ own interest in trying the products shown, but rather their perception of peer interest. However, the ASH Adult Survey measure asked about respondents’ own interest in trying the products shown, meaning that questions for youths and adults were measuring slightly different concepts. Hence, it was not appropriate to directly test for differences between the youth and adult responses. Second, our samples were limited to Great Britain, so findings cannot be generalized to other countries, particularly those with different regulations on e-cigarette and cigarette packaging.This study also has some strengths, including analysis of the associations between standardized e-cigarette packaging and interest. Findings therefore offer valuable and timely evidence that can be used to inform the development of e-cigarette packaging regulations.