So sánh phương pháp

	Media System Dependency Analysis	Uses and Gratifications Survey
Lĩnh vực	Communication	Communication
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1976	1973
Người khởi xướng	Sandra Ball-Rokeach & Melvin DeFleur	Elihu Katz, Jay Blumler & Michael Gurevitch
Loại	Survey approach to audience reliance on media to meet goals	Audience-centered survey approach to media motivations and rewards
Công trình gốc	Ball-Rokeach, S. J., & DeFleur, M. L. (1976). A dependency model of mass-media effects. Communication Research, 3(1), 3–21.	Katz, E., Blumler, J. G., & Gurevitch, M. (1973). Uses and gratifications research. Public Opinion Quarterly, 37(4), 509–523.
Tên gọi khác	Media dependency analysis, MSD analysis, Dependency theory measurement, Medya Bağımlılığı Analizi	U&G survey, Gratifications sought and obtained survey, Media gratifications measurement, Kullanımlar ve Doyumlar Anketi
Liên quan	4	4
Tóm tắt	Media system dependency analysis operationalizes Ball-Rokeach and DeFleur's 1976 theory that media effects are strongest when individuals depend heavily on the media system to attain personal goals — understanding their world, orienting their actions, and finding diversion. The method surveys the intensity of these dependency relations and relates them to cognitive, affective, and behavioral effects of media.	The uses and gratifications survey is the dominant audience-centered method in communication research, asking not what media do to people but what people do with media. Codified by Katz, Blumler, and Gurevitch in 1973, it treats audiences as active agents who select media to satisfy social and psychological needs, and it measures those motives and the rewards obtained through structured self-report scales.