A speaker who experiences high levels of communication apprehension cannot project confidence and credibility

According to symbolic convergence theory, unique "personalities" or cultures of groups evolve through

A. the sharing of rules. B. flux in input variables. C. a fantasy chain. D. the exchange of rewards.

Technology industrialization increased very dramatically during ______, bringing forth the telegraph, camera, telephone, phonograph, and many other communication technologies.

A. World War 1 B. the 19th century C. the technological revolution D. the 20th century