Chronic pain continues to challenge all touched by its impact: the patient, families, the employer, insurance companies, health care providers, and government support programs. Chronic pain and its definition are problematic due to a lack of consensus about basic definitions and inconsistencies in measurement and assessment techniques. Although considerable effort has been put into a taxonomy to help classify various pain symptoms, presently no classification system for chronic pain, musculoskeletal disorders, or back pain is uniformly used. Since pain is subjective and not directly measurable, prior assessment efforts have focused on a wide range of standard diagnoses and etiology indicators, patient self reports, physician rating scales, and psychological assessment tools. The forms developed in this battery standardize the assessment of all these critical areas by medical staff and patients, providing a routine measure that prevents case by case interpretations. The physician form provides a framework to obtain specific information that allows the physician to make an informed objective recommendation regarding the pain patient. This has not been available previously. As a national database of information builds, these questionnaires will be used as measures of treatment effectiveness, and a tool to compare pain treatment outcomes. * Unique multiperspective tool that contains a concise pain assessment protocol which encompasses all domains related to chronic pain evaluation * Provides the first and only scientifically reliable and valid chronic pain assessment tool proven to predict likelihood of return to work in disability applicants with chronic pain * Contains clinically useful information for the implementation of the instruments in an office or administrative setting