J. B. Rotter's internal-external scale has been widely used as a measure of the degree to which an individual believes he can control the outcome of events. When a revised form of the Rotter scale was subjected to factor analysis, with Rotter's 29 forced-choice items presented as 58 statements to be evaluated along semantic differential scales,…

The concepts of credibility, attraction, power, and "homophily" (degree to which source and receiver are similar in certain attributes) have been investigated as independent and unrelated variables in the communication process. The authors seek to establish the relationship of these variables as subdivisions of the overriding concept…

The investigators assume that in a social power relationship, where one person has the power to reward or punish another for the latter's behavior, the social inferior will tend to conceal from a superior information he possesses or attitudes he holds which, if shared, might cause the superior to censure the inferior. To test this hypothesis, two…