Previous research generally has indicated that within modern societies opinion leaders tend to function within single-topic areas, whereas, within traditional societies, opinion leaders tend to function across multiple-topic areas. Results conflicting with this general pattern have been obtained by several researchers. The present study was based on the speculation that these discrepant findings could be explained by the nature of the communication system in which the subjects function (varying from relatively open to relatively closed), regardless of the general society surrounding the communication system. The results of the study found a high degree of association between monomor-phic and polymorphic opinion leadership within a relatively closed communication system in a modern society. Supplementary findings indicated moderately high association between both innovativeness and communication apprehension and polymorphic opinion leadership. Much lower relationships between monomorphic opinion leadership and these variables were observed.