The document summarizes several studies on the reliability and validity of the ORS (Outcome Rating Scale) and SRS (Session Rating Scale). It describes multiple studies that found high internal consistency for both measures. It also reports that studies found the ORS and SRS to be valid based on correlations with other measures of client distress, functioning, and therapy outcomes. Further, feedback studies found routinely monitoring client progress and providing therapists feedback improved outcomes for clients identified as at risk of deterioration.