The purposes of Sigma Theta Tau International are: 1) Recognize superior achievement 2) Recognize the development of leadership qualities 3) Foster high professional standards. 4) Encourage creative work. 5) Strengthen commitment to the ideals and purposes of the profession CRITERIA: Each undergraduate candidate for membership is required to meet the criteria for the undergraduate category of membership. Undergraduate students are required to have completed ½of the nursing curriculum, have at least 3.0 GPA on a 4.0 grading scale