This study aimed to examine the psychometric properties of the Turkish version of Sosu Critical Thinking Disposition Scale (TV-CTDS). The data were gathered from two independent samples consisting of undergraduate and graduate students from four different universities in the Black Sea region of Turkey. After the translation procedure, the psychometric properties of the TV-CTDS, including factor structure, measurement invariance, convergent validity, discriminant validity, and reliability, were investigated. The results of the study revealed that the two-factor model (critical openness and reflective skepticism) of the TV-CTDS presented a better fit to the data than the one-factor model, and two-factor model is invariant across different samples (undergraduate and graduate students) and genders. Also, the TV-CTDS showed convergent validity and discriminant validity across two different samples, and its internal consistency was adequate. Therefore, it can be said that the TV-CTDS can be used by educators, researchers, and professionals to assess undergraduate and graduate students' critical thinking dispositions in Turkey.