New measurement of students' learning and teaching concepts is essential for creating constructive alignment in teaching and support formative assessment to promote epistemic development. The Epistemological Development in Teaching Learning Questionnaire (EDTLQ) was developed to meet these needs. In the present study, the factor structure of EDTLQ was examined using a sample of 643 students from a Swedish University. The results show that the correlated six-factor model fits the data the best. The result is consistent with the developmental theory that posits development as a dynamic highly correlated process varying across and within domains. There is a potential to use EDTLQ as a tool for adapting teaching to appropriate levels of understanding within different domains. The EDTLQ is one of the few measurements that can be used to assess students' learning concepts so that education/teaching can be adapted to support students? development of more complex levels of thinking about learning.