This research tested questions related to Cheek and Buss's (1981) prediction that sociability moderates the relation between shyness and dysfunction interaction. In Study 1, a confirmatory factor analysis of Shyness and Sociability scales revealed that these factors are more inversely related than previously recognized. In Study 2, the relations of shyness, sociability, and gender and their interactions with dysfunctional behavior were tested during a conversation with an opposite-sex partner. Using analyses that tested the unique influence of each variable, the results failed to confirm that shy-sociable Ss evidenced more dysfunctional behavior than shy low-sociable Ss. Instead, shyness was the most consistent predictor of behavioral, physiological, and cognitive indexes of anxiety, and shy men were more dysfunctional on some criteria. In particular, shyness differences in perceived visibility of one's nervous behaviors are discussed relative to the role of cognition in shyness.Recent theoretical presentations by Buss (1980), Briggs (1985), and Cheek, Melchior, and Carpentieri (1986 and empirical investigations by Briggs (1988), Cheek and Buss (1981), and Jones, Briggs, and Smith (1986 have clarified the concep-