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Table 1 List of constructs (outcome measures)

From: The effects of the European e-cigarette health warnings and comparative health messages on non-smokers’ and smokers’ risk perceptions and behavioural intentions

Constructs Statements Anchors
Perceptions of e-cigarettes How harmful do you think e-cigarettes are? ☐ Extremely (…) ☐ Not at all
How addictive do you think e-cigarettes are? ☐ Extremely (…) ☐ Not at all
How socially acceptable do you think e-cigarettes are? ☐ Extremely (…) ☐ Not at all
How effective do you believe e-cigarettes to be as a quit aid ☐ Extremely (…) ☐ Not at all
Intentions How likely are you to use an e-cigarette  
 a) in the next month
 b) in the next 6 months
☐ Extremely (…) ☐ Not at all
☐ Extremely (…) ☐ Not at all
How likely are you to purchase an e-cigarette  
 a) in the next month
 b) in the next 6 months
☐ Extremely (…) ☐ Not at all
☐ Extremely (…) ☐ Not at all
For smokers only
How likely is it that you will make a quit attempt:  
 a) in the next month
 b) in the next 6 months
☐ Extremely (…) ☐ Not at all
☐ Extremely (…) ☐ Not at all
How likely are you to use an e-cigarette in a quit attempt  
 a) in the next month
 b) in the next 6 months
☐ Extremely (…) ☐ Not at all
☐ Extremely (…) ☐ Not at all
  1. Note: Each of these statements will be presented prior to and following exposure to one of the e-cigarette health messages