Three items measuring how unique, different, and distinct a consumer perceives a particular purchase or consumption experience to be relative to other purchases they have had. Bastos and Brucks (2017) developed the scale to assess 'purchase uniqueness' in a study examining whether experiential or material purchases generate greater conversational value and subjective wellbeing. Participants recalled a past purchase and rated it on the scale. The blanks in each item should be replaced with a reference to the focal purchase or experience.
Bastos, W., & Brucks, M. (2017). How and why conversational value leads to happiness for experiential and material purchases. Journal of Consumer Research, 44(3), 598–612.
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