This presentation entitled “Standardizing the Metric and Increasing the Efficiency of Physical Functioning Outcomes Measurement” demonstrated that improved adaptive survey logic (ASLX®) combined with improved physical functioning survey items can achieve the following improvements: a standardized scale that maintains backward comparability with legacy generic physical functioning measures; reductions in respondent burden of 50% in comparison with routine CAT surveys; reduced percentage scoring at the highest score level (ceiling); and improved range over which reliable measurement can be achieved, including for those with mild impairment. The presentation was made by Dr. Rick Guyer of JWRG on Tuesday, November 6th at the ISPOR 15th Annual European Congress.