Increase in power through multivariate analyses.

  title={Increase in power through multivariate analyses.},
  author={Stephanie Schmitz and Stacey Shawn Cherny and David W. Fulker},
  journal={Behavior genetics},
  volume={28 5},
Power to detect genetic and environmental influences increases not only with sample size but also with the number of measurements through longitudinal and/or multivariate designs, if those measurements correlate with each other. Power simulations are presented for uni- through quadrivariate cases, with differing genetic and environmental parameters. Even though subject attrition is a problem for most longitudinal studies, the gain in power available may more than make up for this shortcoming in… CONTINUE READING

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