Bartko J J, Pulver A E, Carpenter W T
Division of Biometry and Applied Sciences, National Institute of Mental Health, Bethesda, MD 20817.
Psychiatry Res. 1988 Mar;23(3):301-9. doi: 10.1016/0165-1781(88)90021-2.
A discussion of the importance of statistical power in research is presented accompanied by nomograms for determining sample size and statistical power for the Student's paired and unpaired t tests with a Type I error of 5%. A brief review of statistical inference is presented. Some findings from Part I are reviewed.
