Three sentence-completion items measure a consumer's overall trust in a website, covering general trust, believability of the site's information, and confidence in the site's recommendations.
Bart, Y., Shankar, V., Sultan, F., & Urban, G. L. (2005). Are the drivers and role of online trust the same for all web sites and consumers? A large-scale exploratory empirical study. Journal of Marketing, 69(4), 133–152.
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