Improving students' learning environment by DREEM: an educational experiment in an Iranian medical sciences university (2011-2016).

Background: Students' perception of the educational setting is an important source for improving and applying changes to the educational environment. In this study, we reassessed undergraduate students' perception of the educational environment at two colleges of RUMS-Iran in the academic years of 2011 and 2016.

Methods: In the present prospective study, the DREEM inventory consisted of seven courses for undergraduate paramedical and nursing-midwifery students (n = 982).