Global rating of change scales: a review of strengths and weaknesses and considerations for design.

@article{Kamper2009GlobalRO,
  title={Global rating of change scales: a review of strengths and weaknesses and considerations for design.},
  author={Steven J. Kamper and Christopher G. Maher and Grant Mackay},
  journal={The Journal of manual & manipulative therapy},
  year={2009},
  volume={17 3},
  pages={163-70}
}
Most clinicians ask their patients to rate whether their health condition has improved or deteriorated over time and then use this information to guide management decisions. Many studies also use patient-rated change as an outcome measure to determine the efficacy of a particular treatment. Global rating of change (GRC) scales provide a method of obtaining this information in a manner that is quick, flexible, and efficient. As with any outcome measure, however, meaningful interpretation of… CONTINUE READING
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