How many measurements for time-averaged differences in repeated measurement studies?

@article{Zhang2011HowMM,
  title={How many measurements for time-averaged differences in repeated measurement studies?},
  author={Song Zhang and Chul Ahn},
  journal={Contemporary clinical trials},
  year={2011},
  volume={32 3},
  pages={412-7}
}
In many studies, investigators have perceived the number of repeated measurements as a fixed design characteristic. However, the number of repeated measurements is a design choice that can be informed by statistical considerations. In this paper, we investigate how the number of repeated measurements affects the required sample size in longitudinal studies with scheduled assessment times and a fixed total duration. It is shown that the required sample size always decreases as the number of… CONTINUE READING

From This Paper

Topics from this paper.

Similar Papers

Loading similar papers…