Six items assess how much a consumer believes that the writer of an online review was honest, trustworthy, and genuinely motivated to help others make informed decisions. Grewal and Stephen (2019) used the scale in Studies 2b and 3 in the context of hotel reviews. The scale appears to have been created by the authors.
Grewal, L., & Stephen, A. T. (2019). In mobile we trust: The effects of mobile versus nonmobile reviews on consumer purchase intentions. Journal of Marketing Research, 56(5), 791–808.
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