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Author: Helena Chmura Kraemer Publisher: SAGE Publications ISBN: 1483319539 Category : Social Science Languages : en Pages : 161
Book Description
With increased emphasis on helping readers understand the context in which power calculations are done, this Second Edition of How Many Subjects? by Helena Chmura Kraemer and Christine Blasey introduces a simple technique of statistical power analysis that allows researchers to compute approximate sample sizes and power for a wide range of research designs. Because the same technique is used with only slight modifications for different statistical tests, researchers can then easily compare the sample sizes required by different designs and tests to make cost-effective decisions in planning a study. These comparisons demonstrate important principles of design, measurement, and analysis that are rarely discussed in courses or textbooks, making this book a valuable instructional resource as well as a must-have guide for frequent reference.
Author: Helena Chmura Kraemer Publisher: SAGE Publications ISBN: 1483319539 Category : Social Science Languages : en Pages : 161
Book Description
With increased emphasis on helping readers understand the context in which power calculations are done, this Second Edition of How Many Subjects? by Helena Chmura Kraemer and Christine Blasey introduces a simple technique of statistical power analysis that allows researchers to compute approximate sample sizes and power for a wide range of research designs. Because the same technique is used with only slight modifications for different statistical tests, researchers can then easily compare the sample sizes required by different designs and tests to make cost-effective decisions in planning a study. These comparisons demonstrate important principles of design, measurement, and analysis that are rarely discussed in courses or textbooks, making this book a valuable instructional resource as well as a must-have guide for frequent reference.
Author: Helena Chmura Kraemer Publisher: SAGE ISBN: 9780803929494 Category : Mathematics Languages : en Pages : 128
Book Description
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.
Author: Peter Belohlavek Publisher: Blue Eagle Group ISBN: 9876510290 Category : Business & Economics Languages : en Pages : 373
Book Description
These books were written as consultation books to be used to solve problems. They are essentially analogous to medical books for individuals who decided to manage the concepts and fundamentals of things in order to manage the root causes of problems. The Power of Nations integrates the Economic, Social, Diplomatic and Dissuasion Powers to sustain the power of the culture that is within its archetype. All cultures need to integrate all the aspects -economic, social, diplomatic and dissuasion powers. But each culture needs to do it based on its values, in a way that is natural for the culture.
Author: J. P. Verma Publisher: Springer Nature ISBN: 9811552045 Category : Mathematics Languages : en Pages : 138
Book Description
This book addresses sample size and power in the context of research, offering valuable insights for graduate and doctoral students as well as researchers in any discipline where data is generated to investigate research questions. It explains how to enhance the authenticity of research by estimating the sample size and reporting the power of the tests used. Further, it discusses the issue of sample size determination in survey studies as well as in hypothesis testing experiments so that readers can grasp the concept of statistical errors, minimum detectable difference, effect size, one-tail and two-tail tests and the power of the test. The book also highlights the importance of fixing these boundary conditions in enhancing the authenticity of research findings and improving the chances of research papers being accepted by respected journals. Further, it explores the significance of sample size by showing the power achieved in selected doctoral studies. Procedure has been discussed to fix power in the hypothesis testing experiment. One should usually have power at least 0.8 in the study because having power less than this will have the issue of practical significance of findings. If the power in any study is less than 0.5 then it would be better to test the hypothesis by tossing a coin instead of organizing the experiment. It also discusses determining sample size and power using the freeware G*Power software, based on twenty-one examples using different analyses, like t-test, parametric and non-parametric correlations, multivariate regression, logistic regression, independent and repeated measures ANOVA, mixed design, MANOVA and chi-square.
Author: R. Barker Bausell Publisher: Cambridge University Press ISBN: 1139441663 Category : Science Languages : en Pages : 379
Book Description
Power analysis is an essential tool for determining whether a statistically significant result can be expected in a scientific experiment prior to the experiment being performed. Many funding agencies and institutional review boards now require power analyses to be carried out before they will approve experiments, particularly where they involve the use of human subjects. This comprehensive, yet accessible, book provides practising researchers with step-by-step instructions for conducting power/sample size analyses, assuming only basic prior knowledge of summary statistics and the normal distribution. It contains a unified approach to statistical power analysis, with numerous easy-to-use tables to guide the reader without the need for further calculations or statistical expertise. This will be an indispensable text for researchers and graduates in the medical and biological sciences needing to apply power analysis in the design of their experiments.
Author: United States. Congress. Senate. Committee on Appropriations. Subcommittee on Public Works Publisher: ISBN: Category : Power resources Languages : en Pages : 1154
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Public Works Publisher: ISBN: Category : Energy policy Languages : en Pages : 1640
Author: Cindy Isenhour Publisher: Routledge ISBN: 1351677306 Category : Business & Economics Languages : en Pages : 437
Book Description
With growing awareness of environmental deterioration, atmospheric pollution and resource depletion, the last several decades have brought increased attention and scrutiny to global consumption levels. However, there are significant and well documented limitations associated with current efforts to encourage more sustainable consumption patterns, ranging from informational and time constraints to the highly individualizing effect of market-based participation. This volume, featuring essays solicited from experts engaged in sustainable consumption research from around the world, presents empirical and theoretical illustrations of the various means through which politics and power influence (un)sustainable consumption practices, policies and perspectives. With chapters on compelling topics including collective action, behaviour-change and the transition movement, the authors discuss why current efforts have largely failed to meet environmental targets and explore promising directions for research, policy and practice. Featuring contributions that will help the reader open up politics and power in ways that are accessible and productive and bridge the gaps with current approaches to sustainable consumption, this book will be of great interest to students and scholars of sustainable consumption and the politics of sustainability.
Author: R. Barker Bausell Publisher: Cambridge University Press ISBN: 9780521809160 Category : Science Languages : en Pages : 376
Book Description
Power analysis is an essential tool for determining whether a statistically significant result can be expected in a scientific experiment prior to the experiment being performed. This comprehensive, accessible book provides practicing researchers with step-by-step instructions for conducting power/sample size analyses, assuming only basic prior knowledge of summary statistics and normal distribution. It contains a unified approach to statistical power analysis, with numerous easy-to-use tables that make further calculations or statistical expertise unnecessary.
Author: Helena Chmura Kraemer
Author: Helena Chmura Kraemer
Author: Helena Chmura Kraemer
Author: Peter Belohlavek
Author: J. P. Verma
Author: R. Barker Bausell
Author: United States. Congress. Senate. Committee on Appropriations
Author: United States. Congress. Senate. Committee on Appropriations. Subcommittee on Public Works
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Public Works
Author: Cindy Isenhour
Author: R. Barker Bausell