Measures the degree to which a person's motivation for writing or sharing a product review was driven by a genuine desire to assist others in making better decisions. Used in Study 2 (n = 604 MTurk participants). General enough for use with both online review posting and private opinion sharing. The blank in item 2 should be filled with the product or service category (e.g., 'hotel'). Source not stated; appears to be original.
Packard, G., & Berger, J. (2017). How language shapes word of mouth's impact. Journal of Marketing Research, 54(4), 572–588.
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