This study examined the relationship between school newspaper advisers and principals in Missouri high schools to determine whether the quality of this relationship affects freedom of expression in school newspapers. Responses on a questionnaire concerning principal's management style, adviser's job satisfaction, and communication conditions were gathered from 88 pairs of principals and advisers. Testing of nine major hypotheses revealed that communication conditions, job satisfaction of advisers, and the length of time an adviser has worked with school newspapers were the key variables related to censorship. (Author/KS)