This scale measures how confident a person feels in their ability to predict another individual's behaviors, values, attitudes, and feelings. Thomson, Jeffrey, and Johnson (2023) used it, calling it certainty of meaning, to test how well audiences feel they know a celebrity following character-endorsement exposure.
7-point scale (not at all (1) to completely (7))
Full scale items shown. Always cite the original source when using this scale in research.
Exact alphas were not reported, but Thomson, Jeffrey, and Johnson (2023) stated that all scales in Study 1 and Study 2 exceeded α = .91 and .95, respectively, across samples of 213 and 494 MTurk participants. Confirmatory factor analyses using Study 1 data supported the scale's discriminant validity from measures of fit and of liking/trust. Note: the items originate from Clatterbuck's (1979) seminal Attributional Confidence Interval measure of interpersonal uncertainty reduction; they are reused essentially verbatim here, with reliability drawn from the focal paper's own administration. Clatterbuck, Glen W. (1979), "Attributional Confidence and Uncertainty in Initial Interaction," Human Communication Research, 5 (2), 147-157, is the original source and is recorded here as a full second reference.
Thomson, Matthew, Jennifer Jeffrey, and Allison R. Johnson (2023), "Actors versus Their Fictional Personas: How Character Endorsements Mitigate Real Scandal," Journal of Advertising, 52 (3), 456-467.
Free access to 2581+ psychometric scales at PsychScales