Borrowed theories, shared theories, and the advancement of nursing knowledge.

Despite the continued use of borrowed theories in nursing, little attention has been given to determining whether theories developed in another discipline are empirically adequate descriptions, explanations, or predictions of nursing phenomena. In this article, we demonstrate how a borrowed theory can be placed within a nursing context by linking it with two different conceptual models of nursing. We present our plans for research focused on condom use behavior and discuss how results from these studies will be used to determine whether the borrowed theory can be considered a shared theory.