Three items check how well someone actually understands what Fair Trade certification requires, beyond just recognising the label.
7-point Likert (1=strongly disagree, 7=strongly agree)
Kim, C.H., & Han, E. (2020). Premiums Paid for What You Believe In: The Interactive Roles of Price Promotion and Cause Involvement on Consumer Response. Journal of Retailing, 96(2), 235-250.
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