An overview of previous research in domain of moral identity shows a certain limitation of methodological approaches, especially when it comes to explicit measurement methods that were dominantly focused on examining the self-perception of one's own moral values. As part of a broader research project a new Moral Identity Questionnaire was constructed, which, compared to existing measures, represents a conceptually different approach to measuring moral identity. In accordance with the above, the goal of this research was to make a preliminary validation of the newly constructed Moral Identity Questionnaire, which included examining its metric characteristics as well as checking some aspects of convergent and competitive validity. 520 participants of the mostly student population (388 women and 132 men) took part in the research and filled out the Moral Identity Questionnaire, the Paired Moral Values Comparison Questionnaire and the Sociodemographic Data Questionnaire. By processing the results of the Moral Identity Questionnaire, two basic parameters related to the strenght of assessment (internalization of moral values) and the number of value choices (consistency in selecting moral values) were calculated. The results showed that the measures of the strength of assessment and the number of choices are two relatively independent parameters of moral identity, considering the established insignificant connections between the mentioned measures on the majority of moral values. The measure of assessment strength and number of choices was shown to be low, positively and negatively related within certain contexts of varying weight on most, that is, all moral values, which points to the presence of a strong contextual effect of moral dilemmas. Similarly, the strong contextual effect of moral dilemmas is indicated by the established significant positive and negative correlations between the measures of assessment strength and the number of choice at several levels of context and for all moral values. Furthermore, significant positive correlations were found between the measure of the number of choices on the Moral Identity Questionnaire and the Paired Values Comparison Questionnaire on almost all moral values, which indicates satisfactory convergent validity of the specified parameter. The measure of assessment strength did not demonstrate satisfactory convergent validity, given that it was found to be insignificantly related to the measure of the number of choices on the Paired Values Comparison Questionnaire on most moral values. Finally, the parameters of moral identity did not show satisfactory concurrent validity in relation to the volunteer status of the participants, considering that participants without volunteer experience achieved significantly higher results on the measure of the strength of assessment for the value of loyalty and on the measure of the number of choices for the value of loyalty and freedom compared to participants who have volunteered so far. Concurrent validity in relation to the religious status of the participants is satisfied to some extent, given that believers achieved higher results on the measure of the strength of assessment and/or the number of choices on the values of loyalty, freedom, respect and responsibility compared to participants who did not declare themselves believers, while found the opposite direction of results for the values of benevolence and truth. Similarly, religiously practicing participants scored significantly higher than nonreligious participants on a measure of assessment strength for the values of loyalty, freedom, and respect, and on a measure of the number of choices for the value of loyalty and responsibility. Finally, participants who did not declare themselves religious achieved significantly higher results compared to participants who practice religion on the measure of the strength of assessment for the value of truth and on the measure of the number of choices for the values of benevolence and respect.