Quantifying responsiveness of quality of life measures without an external criterion

@article{Zou2004QuantifyingRO,
  title={Quantifying responsiveness of quality of life measures without an external criterion},
  author={Guang Yong Zou},
  journal={Quality of Life Research},
  year={2004},
  volume={14},
  pages={1545-1552}
}
The responsiveness of a quality of life measure has received considerable attention in the literature. A two time-point (pre-/post-) study design is usually adopted to evaluate this property when a gold standard is not available. Among many indices, Cohen’s effect size and the standardized response mean (SRM) are usually computed. To interpret the results, researchers commonly appeal to an arbitrary criterion for both indices even though they are different by definition. In this paper, we… CONTINUE READING