Objectives A few of the challenges involved in measuring moral development includes tools and methodology. The present study compared two neo-Kohlbergian approaches in the study of moral development. Methods A total of 40 peoples referred to the Center for Behavioral and Mental Health Assessment were selected as a sample group, subjected to QUAN-QUAL (equal) design, and assessed using Defining Issue Test (DIT), Sociomoral Reflection Measure-Short Form (SRM-SF), semi-structured interviews based on hypothetical moral dilemmas, and in-depth interviews based on real-life dilemmas. Results The results showed that DIT and SRM-SF scores were correlated in the moral maturity index; however, these two methods and the results of conflicts in real life exhibited significant differences . Conclusion Therefore, standards and instructions were applied to both methods including test based on the memory or recalling that would yield similar results. Furthermore, the difference between these two methods with respect to results and interviews based on real-life dilemmas might be dependent on the situation of the individual than the tools, making self-judgment easier for individuals.