For decades Communication scholars theorized how uncertainty will influence various communication phenomena. The present study seeks to differentiate personal, interpersonal, and transactional uncertainty under the Uncertainty Reduction framework. The study finds that there is a qualitative difference between a personal vs. interpersonal uncertainty in close relationship, and these uncertainties varies as function of communication channels. A new set of measures of uncertainties in close relationship is established, showing casing excellent convergent, discriminate, and predictive validity and internal consistency.
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