Comparison of a single global item and an index of a multi-item health status measure among persons with and without diabetes in the US

@article{Barofsky2004ComparisonOA,
  title={Comparison of a single global item and an index of a multi-item health status measure among persons with and without diabetes in the US},
  author={Ivan Barofsky and Pennifer Erickson and Mary Eberhardt},
  journal={Quality of Life Research},
  year={2004},
  volume={13},
  pages={1671-1681}
}
This study examined the hypothesis that a single global item can be substituted for an index of a multi-item assessment and lead to equivalent interpretative outcomes. Substitutability would be demonstrated if: (1) the two measures were strongly correlated, and regression analysis showed that the same variables accounted for variation in each measure, and… CONTINUE READING