Aim: To evaluate nursing students' professionalism attitude, it is necessary to use a validated and reliable instrument.
Design: This study aimed to develop the Persian version of the eight-dimensional professionalism attitude questionnaire for student nurses (Instrument of Professional Attitude for Student Nurses).
Methods: In this cross-sectional study during March to April 2017, after being translated into Persian and receiving experts' comments face, content, and construct validity of the questionnaire were sought among nursing students.