Melissa York of Ada, a senior at East Central University majoring in psychology with a legal studies minor, has been awarded a $1,500 Alfred H. Nolle Scholarship from Alpha Chi national college honor society.  She is one of only 10 winners nationwide.    York's award-winning research, “Emotional Timeline: Expectations Regarding the Emotional Reactions of Sexual Assault Victims,” was presented at the Alpha Chi convention in San Diego last March. The convention featured scholarly and creative presentations by more than 260 students.   Her research is directed by Dr. Marc Klippenstine, assistant professor of psychology at ECU.   "Being awarded a scholarship from Alpha Chi was such an unexpected honor,” York said. “I am planning to attend law school in the fall of 2012 and this scholarship has enabled me to enroll in extra courses to help me prepare. It has been such a blessing and I am very thankful for it.”   Alpha Chi has some 300 chapters in 45 states and the District of Columbia. Members are in the top 10 percent of juniors, seniors and graduate students in all academic fields.