Source credibility pertains to how much a communicator is perceived to be believable, competent, and trustworthy.
Argument quality pertains to the persuasive strength of arguments embedded in an informational product message.
Measurement for source credibility and argument quality were developed from the study of Bhattacherjee and Sanford
(2006). Each portion included four items.
Tie strength pertains to the closeness and interaction frequency of a relationship. Measurement for tie strength was
developed from the study of Levin and Cross (2004) and Marsden and Campbell (1984). This portion included four items.