Statistical power analysis in research by helena chmura kraemer sue thieniann 1987 newbury park ca sage publications inc 120 pp isbn 0 8039 2944 8 1795 stephen dubin 1 behavior research methods instruments computers volume 22 page 486 1990cite this article 1770 accesses metrics details download to read the full article text references how many subjects statistical . Statistical power analysis in research stephen dubin drexel university philadelphia pennsylvania how many subjects statistical power analysis in research by helena chmura kraemer sue thiemann 1987 newbury park ca sage publications inc 120pp isbn 0 8039 2944 81795 it is most satisfying to find a statistical book that is in formative and mathematically rigorous yet very . Statistical power analysis in research helena chmura kraemer christine blasey limited preview 2015 how many subjects statistical power analysis in research helena chmura kraemer christine blasey no preview available 2015 common terms and phrases adequate power approximately assess association assumptions baseline variable binomial test bivariate normal distribution clinical or . Explore the research methods terrain read definitions of key terminology and discover content relevant to your research methods journey reading lists find lists of key research methods and statistics resources created by users project planner find all you need to know to plan your research project which stats test choose an appropriate statistical method using this straightforward tool . How many subjects is a practical guide to sample size calculations and general principles of cost effective research it introduces a simple technique of statistical power analysis which allows researchers to compute approximate sample sizes and power for a wide variety of research designs because the same technique is used with only slight modifications for different statistical tests