A methodological review of non-therapeutic intervention trials employing cluster randomization, 1979-1989.

@article{Donner1990AMR,
  title={A methodological review of non-therapeutic intervention trials employing cluster randomization, 1979-1989.},
  author={Allan Donner and Kathleen S. Brown and Penny Brasher},
  journal={International journal of epidemiology},
  year={1990},
  volume={19 4},
  pages={795-800}
}
A methodological review is presented of 16 non-therapeutic intervention trials published over the last decade which have randomized intact clusters rather than individuals in treatment groups. Each of the trials was surveyed as to the information supplied on six methodological criteria. Although there is increasing recognition of the methodological issues associated with cluster randomization, many investigators are still not aware of the impact of this design on sample size requirements and… CONTINUE READING

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