study of the social biological characteristics of female young adult student in Mashhad

This research project was carried out to localize the information about developmental psychology. A sample of 240 guidance and high school female students who were selected on a cluster basis to fill in a 12 part questionnaire. Findings indicate that the most important biological change, that is maturity, happens during the age of 12 and 14, young adult receive their information from their parents, and their reaction to maturity is associated with fear. With respect to social characteristics, they consider traveling and excursion their best recreations.