Reporters' perceived concern for their editors' news priorities and their own role self-concepts were examined for their effects on how reporters covering the Indiana State Assembly used diverse sources of information. Subjects, 34 reporters and 39 state senators, were surveyed concerning their contacts with each other during the 1982 legislative session. Approximately 300 stories about the session were also analyzed to assess the outcomes of those interactions. The findings indicated that perceived concern for editors' priorities was a more important influence on source diversity than reporter role self-concept. Reporters who perceived that their editors had definite concerns about their stories used a wider variety of sources than did those who did not have such concerns. Further, reporters who perceived that editors were concerned with stories stressing interpretation and initiative used a greater diversity of sources than did those who perceived only that editors were concerned with story timeliness and quantity. Experience and type of medium also influenced how widely or narrowly reporters searched for information sources. Broadcast reporters used a narrower range of source than did their print colleagues. Among experienced reporters, perceived editorial concern with serving audience led to a wider variety of source use and a greater diversity of images in the resulting stories. (Author/FL)