[1] Konkuk Univ, Dept Social Welf, Chungju Si 380701, Chungcheongbuk, South Korea
[2] Ewha Womans Univ, Grad Sch Social Welf, Seoul, South Korea
[3] Soongsil Univ, Dept Social Welf, Seoul, South Korea
[4] Univ Illinois, Sch Social Work, Urbana, IL 61801 USA