ISS 2949 - Work Experience II in Interdisciplinary Social Science ISS 2949 - Work Experience II in Interdisciplinary Social Science (1 to 3 variable Credit Hours) (A.A.) Four, eight or 12 hours of volunteer or work experience a week are required depending on the credit hour requirements. This work-study course is designed to continue training in a student’s academic major through field experiences. The student, instructor and work-site supervisor work together to determine specific learning