The document discusses various theories about media audiences and effects. It covers topics like:
1) Audience research that produces data on audience behavior and responses to help media producers. It also discusses how audience research is used to test audience theories.
2) Different audience theories ranging from direct effects theory to theories of active audiences. It places these theories on a spectrum from more behaviorist to more active audience-centered.
3) Historical examples of "moral panics" about new media and the idea that media are often blamed for societal issues. Several specific theories and models are also summarized briefly, including cultivation theory, uses and gratifications, and the two-step flow model.