1. Department of Child Development and Family Studies, Seoul National University, 1 Gwanak-ro Gwanak-gu Seoul 08826, Republic of Korea ().
2. Department of Child Development and Family Studies, Seoul National University, 1 Gwanak-ro Gwanak-gu, Seoul 08826, Republic of Korea ().
3. Division of Human Ecology, Korea National Open University, 86 Daehak-ro Jongro-gu Seoul 03087, Republic of Korea ().