Message Planning,Communication Failure,and Cognitive Load Further Explorations of the Hierarchy Principle

The hierarchy principle predicts and research has demonstrated that in response to communication failure, individuals make less cognitively demanding, low-level changes to message plans, such as the vocal intensity at which they are delivered, rather than more demanding alterations to message content and structure. Three experiments examined the effects of different message preparations on cognitive loads associated with high-level message plan alterations. In Experiment 1, individuals who prepared only one highly iconic message before experiencing communication failure demonstrated greater cognitive load when requested to deliver an alternative message than did individuals who prepared three highly iconic alternative messages. No cognitive load differences were found between those who prepared one or three low-iconicity messages. In Experiment 2, individuals who prepared one or six highly iconic message plans demonstrated greater cognitive load after communication failure than those who prepared three alternatives. This U-curve relationship was replicated in Experiment 3.     

THE VALIDITY OF COMMUNICATION EXPERIMENTS USING HUMAN SUBJECTS: A REVIEW

Sixty-eight experiments published in 1973 and 1974 in the Journal of Communication, Speech Monographs, and Human Communication Research were analyzed. It was concluded that: reports of communication experimentation rarely provide sufficient information to allow critical evaluation of crucial aspects of validity: the validity of communication experimentation may be severely limited by the nature of subjects studied and by failures to eliminate, account for, or acknowledge experimental reactivity.     

Documentary Bioethics: Visual Narratives for Generations X and Y

Narrative bioethics is primarily understood to involve storytelling through the use of literature. This article suggests that other forms of media are necessary to convey stories of an ethical nature to an audience broader than one being trained as medical professionals. "Documentary bioethics" is a manner to present and interpret stories of an ethical nature using forms of popular electronic media in a reality-based documentary style to society at large, specifically Generations X and Y.