On the Graduate School application, indicate the Department of Psychology as the degree program to which you are applying. On that application, you can also specify a particular sub-field or area of specialization. If you are interested in the Psychology of Peace and Violence Program, indicate the Program for your area of specialization. If you are interested in the Social Psychology program, specify that for your area of specialization. Do not apply to both sub-fields. It is also useful to let your recommenders know the program to which you are applying so that they can provide the most relevant and therefore most valuable information about you.