@inbook{1180746261, author={Daniel L. Riddle and Paul W. Stratford}, title={What Does a Change in the Outcome Measurement Indicate?}, booktitle={Is This Change Real?}, publisher={F. A. Davis Company}, address={New York, NY}, year={2013}, url={fadavispt.mhmedical.com/content.aspx?aid=1180746261} }