The Roland-Morris Questionnaire (RMQ)  is a self-administered disability measure in which greater levels of disability are reflected by higher numbers on a 24-point scale. The RMQ has been shown to yield reliable measurements, which are valid for inferring the level of disability, and to be sensitive to change over time for groups of patients with low back pain.
Roland Morris Low Back Pain and Disability Questionnaire (RMQ)
 Stratford PW, Binkley J, Solomon P, Finch E, Gill C, Moreland J. Defining the minimum level of detectable change for the Roland-Morris questionnaire. Phys Ther. 1996 Apr;76(4):359-65; discussion 66-8.
This questionnaire has been designed to give your healthcare provider/therapist information as to how your back pain has affected your ability to manage in everyday life.
The Oswestry Disability Index (aka: Oswestry Low Back Pain Disability Questionnaire) is an extremely important tool that researchers and disability evaluators use to measure a patient’s permanent functional disability. The test is considered the ‘gold standard’ of low back functional outcome tools .
 Fairbank JC, Pynsent PB. The Oswestry Disability Index. Spine. 2000 Nov 15;25(22):2940-52; discussion 52.
The Quebec Back Pain Disability Scale  is a 20-item self-administered instrument designed to assess the level of functional disability in individuals with back pain. The scale is a reliable and valid measure and can be used for monitoring the progress of individual patients participating in treatment or rehabilitation programs.
 Kopec JA, Esdaile JM, Abrahamowicz M, Abenhaim L, Wood-Dauphinee S, Lamping DL, et al. The Quebec Back Pain Disability Scale. Measurement properties. Spine. 1995 Feb 1;20(3):341-52.
Neck disorders are a significant source of pain and activity limitation in workers and those involved in motor vehicle collisions. The Neck Disability Index (NDI)  is designed to measure neck-specific disability. The questionnaire has 10 items concerning pain and activities of daily living including personal care, lifting, reading, headaches, concentration, work status, driving, sleeping and recreation. The measure is designed to be given to the patient to complete, and can provide useful information for management and prognosis of those with neck pain.
 Vernon H, Mior S. The Neck Disability Index: a study of reliability and validity. J Manipulative Physiol Ther. 1991 Sep;14(7):409-15.