PACHECO M. Ana Pacheco has received her bachelor of arts degree in psychology from the University of California at Santa Barbara. Barbara. Graduation exercises were June 13. Miss Pacheco is the daughter of Margaret Pacheco of San Diego, Calif, and the granddaughter of Jose C. Pacheco of Ranch! Ranch! tos. During her college years, she did volunteer social work. She plans now to pursue her master's degree at the University of New Mexico. Her mother, Margaret Pacheco. a former office manager for The Taos News, is now working for the University of California at San Diego and pursuing her bachelor's degree in sociology there.