Clinical trials: CSDRG overview.

UNLABELLED: Recent importance placed upon efficacy research has spawned the development of the Communication Sciences and Disorders Clinical Trials Research Group (CSDRG). This group, funded by the National Institutes of Health (NIH), was organized by the American Speech Language and Hearing Association to address the need for more treatment efficacy research in the domains of evaluation and treatment of communication disorders. This paper outlines the functions of the CSDRG and answers commonly asked questions pertaining to efficacy research. LEARNING OUTCOMES: Readers will: (1) understand how the CSDRG functions within our profession; (2) understand the process through which trials are designed by the CSDRG.