Distribution-based criteria for change in health-related quality of life in Parkinson's disease.

@article{Fitzpatrick2004DistributionbasedCF,
  title={Distribution-based criteria for change in health-related quality of life in Parkinson's disease.},
  author={Raymond Fitzpatrick and Josephine Norquist and Crispin Jenkinson},
  journal={Journal of clinical epidemiology},
  year={2004},
  volume={57 1},
  pages={40-4}
}
BACKGROUND AND OBJECTIVE To be useful, results from health-related quality of life (HRQoL) measures must be interpretable. The objective of this article is to examine statistical (distributional) approaches to interpretability. The standard error of measurement (SEM) and the standard error of the difference (S(diff)) are used in data on individuals with Parkinson's disease to calculate the minimum change scores required to be statistically meaningful for each dimension of an instrument to… CONTINUE READING

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