The 11-item workplace organizational policies and practices questionnaire (OPP-11): examination of its construct validity, factor structure, and predictive validity in injured workers with upper-limb disorders.
Tang K, MacDermid JC, Amick BC, Beaton DE. The 11-item workplace organizational policies and practices questionnaire (OPP-11): examination of its construct validity, factor structure, and predictive validity in injured workers with upper-limb disorders. Am J Ind Med. 2011 Nov; 54(11):834-46.