Korporaal, Charmaine MariaMyburgh, CorneliusRiggien, Lance2017-01-312017-01-312003DIT98698http://hdl.handle.net/10321/1958A dissertation presented in partial compliance with the requirements for the Master's Degree in Technology: Chiropractic, Durban Institute of Technology, Durban, South Africa, 2003.The aim of this investigation was to develop inter-examiner reliability as well as construct and concurrent validity of the Composite Orthopedic Ratin g Scale (CO RS) so that it may be used as an applicable measurement instrument for use in clinical trials relating to mechanical low back pain. This prospective, single - blinded construct and concurrent validity and inter-examiner reliability study consisted of 122 participants, all suffering from mechanical low back pain, specifically lumbar facet or sacro-iliac syndrome. The participants were only required for 1 visit where they were assessed and diagnosed using standardized diagnostic criteria. Thereafter, both the researcher and a blinded, independent examiner applied the tests contained in the Composite orthopedic Rating ScaLe (CO RS) to the participants. Subjective data was obtained using the Roland-Morris Disability Questionnaire and the Numerical Pain Rating Scale- 101. Objective data was obtained from the results of the appIication of the provocative Orthopedic test in the CORS180 penChiropracticBackacheThesishttps://doi.org/10.51415/10321/1958