The Power Of Research
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Determining Sample Size And Power In Research Studies
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Author : J. P. Verma
language : en
Publisher: Springer Nature
Release Date : 2020-07-20
Determining Sample Size And Power In Research Studies written by J. P. Verma and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-07-20 with Mathematics categories.
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.
Research Training For Social Scientists
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Author : Dawn Burton
language : en
Publisher: SAGE
Release Date : 2000-03-15
Research Training For Social Scientists written by Dawn Burton and has been published by SAGE this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-03-15 with Social Science categories.
With indispensable advice for students from all social science backgrounds, this handbook provides the core conceptual and practical skills to embark on succesful research. The organization of the book reflects the knowledge that is required in order to become a competent and effective researcher. It follows the life-cycle of the research project: it begins with a discussion of ethical and philosphical issues; presents guides to both quantitative and qualitative data collection and analysis; provides help on using computers in research; and includes advice on how to write up and present a research project. Based on the UK Economic and Social Research Council advice on the training which students should undertake in preparation for postgraduate research, this book will be invaluable for all beginning researchers.
Knowledge And Power In Collaborative Research
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Author : Louise Phillips
language : en
Publisher: Routledge
Release Date : 2013
Knowledge And Power In Collaborative Research written by Louise Phillips and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Reference categories.
Focusing on dialogic communication theory, science and technology studies, and action research, this volume explores the methodological, epistemological, and ethical conundrums that arise within collaborative research in the dialog between researchers, policy makers, and citizens. It argues that researchers can best deal with the complexities and tensions of collaborative research through reflexive analyses of how "dialogue" and "participation" are played out concretely in different settings.
Power Analysis For Experimental Research
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Author : R. Barker Bausell
language : en
Publisher: Cambridge University Press
Release Date : 2002-09-19
Power Analysis For Experimental Research written by R. Barker Bausell and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-09-19 with Science categories.
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.
Teachers Doing Research
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Author : Gail E. Burnaford
language : en
Publisher: Routledge
Release Date : 2000-11
Teachers Doing Research written by Gail E. Burnaford and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-11 with Education categories.
Describes the process of doing teacher action research and provides examples from teachers themselves. Textbook for pre-service and in-service teacher education courses. Includes suggested activities sections.
How Many Subjects
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Author : Helena Chmura Kraemer
language : en
Publisher: SAGE Publications
Release Date : 2015-01-28
How Many Subjects written by Helena Chmura Kraemer and has been published by SAGE Publications this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-01-28 with Social Science categories.
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.
How Many Subjects
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Author : Helena Chmura Kraemer
language : en
Publisher: SAGE
Release Date : 1987-09
How Many Subjects written by Helena Chmura Kraemer and has been published by SAGE this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987-09 with Mathematics categories.
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.
Quantitative Research Methods In Communication
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Author : Erica Scharrer
language : en
Publisher: Routledge
Release Date : 2021-05-13
Quantitative Research Methods In Communication written by Erica Scharrer and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-05-13 with Language Arts & Disciplines categories.
This textbook is an advanced introduction to quantitative methods for students in communication and allied social science disciplines that focuses on why and how to conduct research that contributes to social justice. Today’s researchers are inspired by the potential for scholarship to make a difference for society, to push toward more just and equitable ends, and to engage in dialogue with members of the public so that they can make decisions about how to navigate the social, cultural, and political world equipped with accurate, fair, and up-to-date knowledge. This book illustrates the mechanics and the meaning behind quantitative research methods by illustrating each step in the research design process with research addressing questions of social justice. It provides practical guidance for researchers who wish to engage in the transformation of structures, practices, and understandings in society through community and civic engagement and policy formation. It contains step-by-step guidance in quantitative methods—from conceptualization through all the stages of execution of a study, including providing a detailed guide for statistical analysis—and demonstrates how researchers can engage with social justice issues in systematic, rigorous, ethical, and meaningful ways. This text serves as a core or supplementary textbook for graduate and advanced undergraduate courses in research methods for communication and social sciences and fills a gap for a methods text that is responsive to the desire of scholars to conduct socially impactful research.
The Power Of Networks
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Author : Florian Kerschbaumer
language : en
Publisher: Routledge
Release Date : 2020
The Power Of Networks written by Florian Kerschbaumer and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with Computers categories.
"The Power of Networks describes a typology of network-based research practices in the historical disciplines, ranging from the use of quantitative network analysis in cultural, economic, social or political history or religious studies, to novel approaches in the Digital Humanities. Network data visualisations and calculations have proven to be useful tools for the analysis of mostly textual sources containing relational information, offering new perspectives on complex historical phenomena. Including case studies from antiquity to contemporary history, the book provides a clear demonstration of the opportunities historical network research (HNR) provides for historical studies. The examples presented within the pages of this volume are arranged in a way to highlight three central typological pillars of HNR: (re-)construction and analysis of historical networks; computational extraction of network data; and infrastructures for data collection and exploration. The Power of Networks outlines the history and current state of research in HNR and points towards future research frontiers in the wake of new digital technologies. As such, the book should be essential reading for academics, students and practitioners with an interest in digital humanities, history, archaeology and religion"--
The Power Of Research
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Author : W. Jerjes
language : en
Publisher: Kugler Publications
Release Date : 2018-04-11
The Power Of Research written by W. Jerjes and has been published by Kugler Publications this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-04-11 with categories.
Preface The purpose of writing this book is to clarify the proper approach to the discussion and study of research integrity and publication ethics in medical research; this will include a code of ethics for academics, as well as cover plagiarism and intellectual property rights. At present, there is a lack of robust agreement on the degree of empirical scientific evidence for specific problems that frequently undermine integrity in research, leading to research misconduct. There is also scant knowledge about publication ethics, for which publication of a definitive code is required. In addition, many instances of what may appear to be fabricated evidence or falsified data have arisen due to a lack of knowledge about best practice rather than intentional fraud. A valuable resource is needed to support and define collaboration between research scholars in this field, and to recognize the boundaries and principles involved. This book seeks to establish a firm knowledge base to address issues arising from research integrity, publication ethics, plagiarism, and protection of intellectual property. It wishes to act as an important guideline for research students for which, at present, there is a notable absence. Key individuals who will benefit the most from this book are qualified professionals involved in the field of medical research; that is, clinical researchers, research students, and scientists. The general public, who need to place complete trust in research integrity, may also be interested in further understanding a topic that is all too infrequently discussed and rarely in the public domain. Scientists are expected to occupy the high moral ground when it comes to the search for truth, especially in regard to the human body. Cases of misconduct tend to hit the headlines due to this very fact, which is why it is imperative that the target audience is as wide as possible to effect transparency on the subject. The features and contents of this book will impart a greater depth of understanding about integrity and publication ethical issues to medical research scientists prior to conducting their research, and to journal editors throughout the publication process. It will explain and define the subject with clear parameters, incorporating a code of ethics. The present book challenges the current climate of ignorance about research integrity and ethics. It will help avoid instances of misconduct, and ensuing investigations, which often arise due to ignorance. It will save time, money, and the psychological effects of accusation, reprimand, and subsequent punitive action by avoidance of wrongdoing. If a medical researcher has been found to have fabricated the results of their studies, the book will act as a valuable guideline for proposed action; the target audience will gain from a clearer definition of research integrity. It will obviate the tendency of some research scientists, even those highly experienced, to base their findings on personal experience, philosophical bias, political and media responses, and individual case studies. A valuable feature of the book will be helping research scientists to advance to the next level of understanding in the study and discussion of research integrity and publication ethics. A number of the interpretations in this book are based on special guidelines co-authored by W Jerjes and C Hopper as well as a number of au13 thors. Also, we acknowledge the support of English language specialist Sandy Eifion-Jones in improving the standard of English for the initial draft of this book. The authors