Utrecht University, Research Centre Adolescent Development, Utrecht, The Netherlands.
J Adolesc. 2010 Oct;33(5):673-82. doi: 10.1016/j.adolescence.2009.11.003. Epub 2009 Dec 1.
This study examined the role of siblings on identity formation in adolescence and emerging adulthood, using a three-wave longitudinal design. Measures of identity formation were filled out by 498 sibling dyads. Sibling effects differed as a function of age and gender configuration within the dyads. Controlled for age, earlier-born siblings reported the most advanced levels of identity formation, and later-born siblings the lowest. Positive relations between siblings' identity and changes in identity of respondents provided support for modeling processes between siblings. The identity of earlier-born same-sex siblings, in particular, tends to be important in influencing identity formation. Contrary to the expectations, differentiation processes between siblings did not appear to influence identity formation. It is apparent from this study that both the gender and birth order of siblings affect whether their own identity formation processes influence those of adolescents and emerging adults.
本研究采用三波纵向设计，考察了兄弟姐妹在青少年和成年初期身份形成中的作用。通过 498 对兄弟姐妹对完成了身份形成的测量。兄弟姐妹的影响因双胞内的年龄和性别配置而异。控制年龄后，较早出生的兄弟姐妹报告了最先进的身份形成水平，而较晚出生的兄弟姐妹则最低。兄弟姐妹身份与受访者身份变化之间的积极关系为兄弟姐妹之间的建模过程提供了支持。特别是，较早出生的同性别兄弟姐妹的身份往往对影响身份形成很重要。与预期相反，兄弟姐妹之间的分化过程似乎并不影响身份形成。本研究表明，兄弟姐妹的性别和出生顺序都会影响他们自己的身份形成过程是否会影响青少年和成年初期的身份形成。
