The correct affiliation for the author is:
Department of Social Welfare, Incheon National University, Incheon, South Korea.
The correct address for correspondence is:
Yongho Chon, Department of Social Welfare, Incheon National University, Incheon, South Korea. E-mail: [email protected]
The correct acknowledgement for this paper should read:
This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government (NRF-2011-330-B00142). This work is a revised version of part of the author's doctoral dissertation.