Sample Sizes and Power Computation for Clinical Intervention Trials

Bird, K. , & Hall, W. (1986). Statistical power in psychiatric research. Australian and New Zealand Journal of Psychiatry, 20, 189-200.

Cochran, W. G. (1983). Planning and analysis of observational studies. New York: Wiley.

Cohen, J. (1977). Statistical power analysis for the behavioral sciences (rev. ed.). New York: Academic Press.

Frieman, J. , Chalmers, T. , Smith, H. , & Kuebler, R. (1978). The importance of beta, the type II error and sample size in the design and interpretation of the randomized control trial. New England Journal of Medicine, 299, 690-694.

Jacobsen, B. , & Meininger, J. (1986). Randomized experiments in nursing: The quality of reporting. Nursing Research, 35, 379-382.

Lachin, J. (1981). Introduction to sample size determination and poweranalysis forclinical trials. Controlled Clinical Trials, 2, 93-113.

Lehmann, E. L. (1975). Nonparametrics: Statistical methods based on ranks. San Francisco: Holden-Day.

Pocock, S. (1983). Clinical trials: A practical approach. New York: Wiley.

Schork, M. A. , & Remington, R. (1967). The determination of sample size in treatment-control comparisons for chronic disease studies in which dropout is a problem. Journal of Chronic Disease, 20, 233-239.