Issues in the transportability of treatment: the case of anxiety disorders in youths.

This article reviews factors working against or in favor of the transportability of manual-based child treatments from research clinics to service practitioners. The review examines client factors, service-clinic therapist factors, and researcher factors that may contribute to the reported gap between research and practice outcomes. As requested for this special section, this article uses work with anxiety-disordered youths as an example of a potentially transportable manual-based treatment. Issues and future directions are discussed.