ABSTRACT: Ethics are the rules foe correct behavior. Professional ethics for nurses will state the ideal ways in which a nurse should behave in all relationships including those with the patient, patient’s relatives, co-workers, members of other professions and the public. The discussion of the professional adjustment is complete only when ethics are included. Research involving human subjects in the medical, social and behavioral sciences poses complex ethical issues which requires careful thought and consideration on the part of both researchers and research participants. Ethics in research are very important when we are going to conduct an experiment.