Download or read book The Prevention and Treatment of Missing Data in Clinical Trials written by National Research Council and published by National Academies Press. This book was released on 2010-12-21 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: Randomized clinical trials are the primary tool for evaluating new medical interventions. Randomization provides for a fair comparison between treatment and control groups, balancing out, on average, distributions of known and unknown factors among the participants. Unfortunately, these studies often lack a substantial percentage of data. This missing data reduces the benefit provided by the randomization and introduces potential biases in the comparison of the treatment groups. Missing data can arise for a variety of reasons, including the inability or unwillingness of participants to meet appointments for evaluation. And in some studies, some or all of data collection ceases when participants discontinue study treatment. Existing guidelines for the design and conduct of clinical trials, and the analysis of the resulting data, provide only limited advice on how to handle missing data. Thus, approaches to the analysis of data with an appreciable amount of missing values tend to be ad hoc and variable. The Prevention and Treatment of Missing Data in Clinical Trials concludes that a more principled approach to design and analysis in the presence of missing data is both needed and possible. Such an approach needs to focus on two critical elements: (1) careful design and conduct to limit the amount and impact of missing data and (2) analysis that makes full use of information on all randomized participants and is based on careful attention to the assumptions about the nature of the missing data underlying estimates of treatment effects. In addition to the highest priority recommendations, the book offers more detailed recommendations on the conduct of clinical trials and techniques for analysis of trial data.
Download or read book Newsletter for Research in Psychology written by and published by . This book was released on 1970 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Next Generation Earth System Prediction written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2016-08-22 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the nation's economic activities, security concerns, and stewardship of natural resources become increasingly complex and globally interrelated, they become ever more sensitive to adverse impacts from weather, climate, and other natural phenomena. For several decades, forecasts with lead times of a few days for weather and other environmental phenomena have yielded valuable information to improve decision-making across all sectors of society. Developing the capability to forecast environmental conditions and disruptive events several weeks and months in advance could dramatically increase the value and benefit of environmental predictions, saving lives, protecting property, increasing economic vitality, protecting the environment, and informing policy choices. Over the past decade, the ability to forecast weather and climate conditions on subseasonal to seasonal (S2S) timescales, i.e., two to fifty-two weeks in advance, has improved substantially. Although significant progress has been made, much work remains to make S2S predictions skillful enough, as well as optimally tailored and communicated, to enable widespread use. Next Generation Earth System Predictions presents a ten-year U.S. research agenda that increases the nation's S2S research and modeling capability, advances S2S forecasting, and aids in decision making at medium and extended lead times.
Download or read book Finding the Pain in Your Ss Umption written by Matt Rawlins and published by Amuzement Publications. This book was released on 2012-02-01 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: What do these three areas have in common? Dealing with change Creativity Difficult Conversations At first glance they all have an aspect of conflict in them. In looking a bit deeper into them we can discover that they are all dealing with different assumptions people make and often don't even know it. If we can learn to deal and work with those often hidden assumptions, then we can go a long way towards being successful in dealing with these areas. This is often hard work but is key to being a successful leader in the world we all live in. Read this brilliant leadership tale about Boomer and Scooter, who discover in the game, 'Pin the Tail on the Donkey' that recognizing and learning to deal with @ssumptions can be a life changing experience.
Download or read book A Technique for the Measurement of Attitudes written by Rensis Likert and published by . This book was released on 1987 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Emotional Design written by Don Norman and published by Basic Books. This book was released on 2007-03-20 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: Why attractive things work better and other crucial insights into human-centered design Emotions are inseparable from how we humans think, choose, and act. In Emotional Design, cognitive scientist Don Norman shows how the principles of human psychology apply to the invention and design of new technologies and products. In The Design of Everyday Things, Norman made the definitive case for human-centered design, showing that good design demanded that the user's must take precedence over a designer's aesthetic if anything, from light switches to airplanes, was going to work as the user needed. In this book, he takes his thinking several steps farther, showing that successful design must incorporate not just what users need, but must address our minds by attending to our visceral reactions, to our behavioral choices, and to the stories we want the things in our lives to tell others about ourselves. Good human-centered design isn't just about making effective tools that are straightforward to use; it's about making affective tools that mesh well with our emotions and help us express our identities and support our social lives. From roller coasters to robots, sports cars to smart phones, attractive things work better. Whether designer or consumer, user or inventor, this book is the definitive guide to making Norman's insights work for you.
Download or read book Statistical Methods for Quality Assurance written by Stephen B. Vardeman and published by Springer. This book was released on 2016-08-26 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: This undergraduate statistical quality assurance textbook clearly shows with real projects, cases and data sets how statistical quality control tools are used in practice. Among the topics covered is a practical evaluation of measurement effectiveness for both continuous and discrete data. Gauge Reproducibility and Repeatability methodology (including confidence intervals for Repeatability, Reproducibility and the Gauge Capability Ratio) is thoroughly developed. Process capability indices and corresponding confidence intervals are also explained. In addition to process monitoring techniques, experimental design and analysis for process improvement are carefully presented. Factorial and Fractional Factorial arrangements of treatments and Response Surface methods are covered. Integrated throughout the book are rich sets of examples and problems that help readers gain a better understanding of where and how to apply statistical quality control tools. These large and realistic problem sets in combination with the streamlined approach of the text and extensive supporting material facilitate reader understanding. Second Edition Improvements Extensive coverage of measurement quality evaluation (in addition to ANOVA Gauge R&R methodologies) New end-of-section exercises and revised-end-of-chapter exercises Two full sets of slides, one with audio to assist student preparation outside-of-class and another appropriate for professors’ lectures Substantial supporting material Supporting Material Seven R programs that support variables and attributes control chart construction and analyses, Gauge R&R methods, analyses of Fractional Factorial studies, Propagation of Error analyses and Response Surface analyses Documentation for the R programs Excel data files associated with the end-of-chapter problem sets, most from real engineering settings
Download or read book American and NATO Veteran Reintegration written by MaryCatherine McDonald and published by Rowman & Littlefield. This book was released on 2021-06-16 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: In American and NATO Veteran Reintegration, MaryCatherine McDonald and Gary Senecal examine mental health issues among former American service members. Data shows that American veterans suffer from post-traumatic stress disorder (PTSD) at significantly higher rates than veterans in other NATO ally countries involved in the war in Afghanistan. McDonald and Senecal argue that sociocultural factors, such as military training and civilian culture, have a dramatic impact on these rates.
Download or read book The Green Bench II written by Matt Rawlins and published by . This book was released on 1999-12 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Decisions of the Employees Compensation Appeals Board written by United States. Employees' Compensation Appeals Board and published by . This book was released on 1963 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reducing Risk written by United States. Environmental Protection Agency. Relative Risk Reduction Strategies Committee and published by . This book was released on 1990 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Rehabilitation R D written by and published by . This book was released on 2002 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Rehabilitation Research Development written by and published by . This book was released on 2002 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Parents Magazine written by and published by . This book was released on 1946 with total page 2088 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Emails from Hell written by Matt Rawlins and published by . This book was released on 1999 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: The devious ideas and strategies used to bring down leaders of groups, organizations--even nations--are revealed, in the intercepted, diabolical e-mails of an executive demon to his student trainee. (Christian Living)
Download or read book Brotherhood of Locomotive Firemen and Enginemen s Magazine written by and published by . This book was released on 1918 with total page 1054 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Journal of Insurance Economics written by and published by . This book was released on 1928 with total page 1374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
