This digital document is a journal article from Journal of Experimental Social Psychology, published by Elsevier in 2005. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.Description: Greater self-complexity refers to the extent that one's self-concept is comprised of many and relatively differentiated self-aspects. Although some research has found that those greater in self-complexity fare better physically (e.g., fewer illnesses) and psychologically (e.g., less depression) when experiencing stress, other studies have reported another pattern of data (e.g., greater self-complexity predicts greater depression). In the current work, two studies found support for a moderating variable in this latter pattern, self-aspect control. Specifically, for those who perceived relatively little control over their self-aspects, being greater in self-complexity predicted worse physical and psychological outcomes. Study 2 tested alternative explanations and supported an interpretation that perceptions of control over one's multiple selves, in particular, moderated the relation between self-complexity and well-being.