A large amount of research investigated the relative importance of different situational and personal determinants of behavior under social influence, with particular attention dedicated to the phenomenon of conformity tendencies. The effect of the type of social influence upon conformity tendency was consistently found. Self-monitoring is considered as a relevant variable in conformity research, as it implies the individual's sensitivity to social cues and reflects the degree to which individuals rely on the majority's reactions in regulating their own behavior. Since the relationship of these three constructs was insufficiently researched, the aim of this study was to examine the differences in conformity tendencies depending on the type of social influence (informational and normative) and the level of self-monitoring. The conformity tendency has been operationalized as a susceptibility to social influence – the behavior of giving the same wrong / unpreferred answer on critical items as the simulated majority, for which the participants were led to believe that previously gave answers on the same items. The research was conducted in two parts. In the first part, preliminary forms of instruments constructed to measure conformity tendencies were used with a goal of selecting items for the final forms of instruments. In the second part, the final forms of instruments examined the conformity tendencies under two types of social influence and self-monitoring. Vocabulary test was used to investigate the conformity tendency under the informational influence, while the Hypothetical situations assessment questionnaire was used for the evaluation of normative influence. For the purpose of measuring self-monitoring, Revised Self-Monitoring Scale (Lennox and Wolfe, 1984) was used. Based on the results on this scale, group of low and high self-monitoring participants were formed. The study was conducted on a sample of 288 female students of University of Zadar, from different departments of undergraduate and graduate level. The questionnaire was administered in groups during regular classes at the University. Results revealed no significant difference in conformity tendencies depending on the type of influence or self-monitoring level. Furthermore, significant interaction between two independent variables was not found. As predicted, differences in conformity tendency considering the type of social influence were not found for the category of participants low on self-monitoring.