This monograph examines how bias affects the perception of journalists and discusses factors which might exacerbate or mitigate such bias. The book recommends the study of journalistic decision-making from perspectives developed in the field of social psychology. The book includes the following chapters: (1) "Media Bias, Cognitive Bias?"; (2) "Cognitive Processes in Journalism: An Overview"; (3) "Categorization"; (4) "Theory Generation"; (5) "Theory Testing"; (6) "Selection of Information"; (7) "Integration of Information"; (8) "Interactions and Perseverance of Biases and Errors"; (9) "Implications for the Study of Newswork"; and (10) "Summary and Conclusions." Forty-one end notes and 16 pages of references are attached. (MS)