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The Use of Sequential Analysis to Improve the Efficiency of Co-twin Control Studies

Published online by Cambridge University Press:  01 August 2014

J. C. Christian*
Affiliation:
Departments of Medical Genetics, Indiana University School of Medicine, Indianapolis
P. L. Yu
Affiliation:
Departments of Medical Genetics, Indiana University School of Medicine, Indianapolis
C. E. Grim
Affiliation:
Departments of Medicine, and, Indiana University School of Medicine, Indianapolis
J. A. Norton Jr.
Affiliation:
Departments of Psychiatry, Indiana University School of Medicine, Indianapolis
*
Department of Medical Genetics, Indiana University School of Medicine, 1100 West Michigan Street, Indianapolis, IN 46202, USA

Abstract

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The co-twin control model using paired-comparison analysis provides an extremely powerful and cost-effective experimental design for clinical research. This paper suggests the possibility of using sequential analysis to further increase the efficiency and specificity of cotwin control studies.

Type
Short Note
Copyright
Copyright © The International Society for Twin Studies 1980

References

REFERENCES

1.Armitage, P (1975): “Sequential Medical Trials.” New York: John Wiley and Sons Inc.Google Scholar
2.Christian, JC, Kang, KW (1972): Efficiency of human monozygotic twins in metabolic studies of blood lipids. Metabolism 21:691699.Google Scholar
3.Schneiderman, MA, Armitage, P (1962): A family of closed sequential procedures. Biometrika 49:4156.Google Scholar
4.Schneiderman, MA, Armitage, P (1962): Closed sequential t-tests. Biometrika 49:359366.Google Scholar
5.Wald, A (1947): “Sequential Analysis.” New York: John Wiley and Sons, Inc.Google Scholar