How Many Subjects?:
Statistical Power Analysis In Research Kraemer, Helena C. |
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ISBN 13: 9780803929494 ISBN 10: 0803929498 Category: Consumer Health (General) Edition: 1 Publisher: Sage Publications Copyright: 1987 Format: Cloth Status: Out of Print Pages: 120 Weight: 1 Retail Price: 74.00 Quantity On Hand: 0 |
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Synopsis: 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, researchers can easily compare the sample sizes required by different designs and tests to make cost-effective decisions in planning a study. These comparisons, emphasized throughout the book, demonstrate important principles of design, measurement and analysis that are rarely discussed in courses or textbooks. |
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