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Testing R Code - Richard (datacamp Cotton - Bog - Taylor & Francis Inc - Plusbog.dk

Learn how to write R code with fewer bugs. The problem with programming is that you are always one typo away from writing something silly. Likewise with data analysis, a small mistake in your model can lead to a big mistake in your results. Combining the two disciplines means that it is all too easy for a missed minus sign to generate a false prediction that you don’t spot until it’s too late. Testing is the only way to be sure that your code, and your results, are correct. Testing R Code teaches you how to perform development-time testing using the testthat package, allowing you to ensure that your code works as intended. The book also teaches run-time testing using the assertive package; enabling your users to correctly run your code. After beginning with an introduction to testing in R, the book explores more advanced cases such as integrating tests into R packages; testing code that accesses databases; testing C++ code with Rcpp; and testing graphics. Each topic is explained with real-world examples, and has accompanying exercises for readers to practise their skills — only a small amount of experience with R is needed to get started!

DKK 468.00

3

Defending Standardized Testing - - Bog - Taylor & Francis Inc - Plusbog.dk

The education reform movement of the past two decades has focused on raising academic standards. Some standards advocates attach a testing mechanism to gauge the extent to which high standards are actually accomplished, whereas some critics accuse the push for standards and testing of impeding reform and perpetuating inequality. At the same time, the testing profession has produced advances in the format, accuracy, dependability, and utility of tests. Never before has obtaining such an abundance of accurate and useful information about student learning been possible. Meanwhile, the American public remains steadfast in support of testing to measure student performance and monitor the performance of educational systems.Many educational testing experts who acknowledge the benefits of testing also believe that those benefits have been insufficiently articulated. Although much has been written on standardized testing policy, most of the material has been written by opponents. The contributing authors of this volume are both accomplished researchers and practitioners who are respected and admired worldwide. They bring to the project an abundance of experience working with standardized tests.The goal of Defending Standardized Testing is to:*describe current standardized testing policies and strategies;*explain many of the common criticisms of standardized testing;*document the public support for, and the realized benefits of, standardized testing;*acknowledge the limitations of, and suggest improvements to, testing practices;*provide guidance for structuring and administering large-scale testing programs in light of public preferences and the "No Child Left Behind Act" requirements; and*present a defense of standardized testing and a vision for its future. Defending Standardized Testing minimizes the use of technical jargon so as to appeal to all who have a stake in American educational reform.

DKK 584.00

3

High-Stakes Testing - R. Murray Thomas - Bog - Taylor & Francis Inc - Plusbog.dk

The federal government''s No Child Left Behind Act has thrust high-stakes testing - its goals, methods, and consequences - into the educational limelight. The four-fold purpose of this book is to: describe the nature of high-stakes testing; identify types of collateral damage that have attended the testing programs; analyze methods different groups of people have chosen for coping with the damage and suggest lessons to be learned from the high-stakes-testing experience. The six groups of people whose coping strategies are inspected include: politicians and their staffs; educational administrators and their staffs; parents and the public; test makers and test administrators; teachers and students. Importantly, the author avoids aligning himself with the test-bashing rhetoric of those who oppose high-stakes testing, especially the No Child Left Behind Act. Key features of this outstanding new book include: - illustrative cases. The book offers more than 350 cases of collateral damage from high-stakes testing--and people''s coping strategies--as reported in newspapers over the 2002-2004 period. - background perspectives. Part I examines the influence of high-stakes testing on: 1) what schools teach; 2) how student progress is evaluated; 3) how achievement standards are set; and 4) how test results are used. - participant responses. Part II, which is the heart of the book, devotes a separate chapter to the coping strategies of each of the major participants in the high-stakes testing movement: politicians and their staffs, educational administrators and their staffs, parents and the public, test-makers and test-givers, teachers, and students. - summary chapter. The last chapter (Lessons to Learn) offers suggestions for minimizing collateral damage by adopting alternative approaches not used in the creation of our current high-stakes testing programs, particularly the federal government''s No Child Left Behind Act. This book is appropriate for any of the following audiences: students taking evaluation or administration courses in schools of education, inservice administrators and teachers, policy makers, and those members of the general public who are concerned about the fate of schooling in America.

DKK 594.00

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Washback in Language Testing - - Bog - Taylor & Francis Inc - Plusbog.dk

Washback refers to the influence of language testing on teaching and learning. This volume, at the important intersection of language testing and teaching practices, presents theoretical, methodological, and practical guidance for current and future washback studies. In the field of language testing, researchers'' major interest has traditionally been focused on issues and solving problems inherent in tests in order to increase their reliability and validity. However, the washback effect goes well beyond the test itself to include factors, such as curriculum, teacher and learner behaviors inside and outside the classroom, their perceptions of the test, and how test scores are used. Only recently have researchers started to empirically investigate the phenomenon of washback. This volume of such research serves two essential purposes by:*providing an overview of the complexity of washback and the various contextual factors entangled within testing, teaching, and learning; and *presenting empirical studies from around the world that offer insights into the effects of washback in specific educational contexts and models of research on which future studies can be based. The extensive use of test scores for various educational and social purposes in society nowadays makes the washback effect a high-interest phenomenon in the day-to-day educational activities of teachers, researchers, program coordinators/directors, policymakers, and others in the field of education. Washback in Language Testing: Research Contexts and Methods is a valuable resource for those who are interested in the application of findings to actual teaching and learning situations or conduct washback research in their own contexts, including educational and psychological testing experts, as well as alternative assessment people in all fields, and for policy- and decision-makers in educational and testing organizations.

DKK 447.00

3

Kill the Messenger - The War on Standardized Testing - Bog af Richard Phelps - Paperback

An authoritative work in defense of educational testing, pointing out that much research conducted by education insiders on the topic is based on ideological preference or profound self-interest. It explains and refutes many of the common criticisms of testing, and describes testing opponents' strategies, through case studies of Texas and the SAT.

DKK 536.95

3

High Stakes Testing - - Bog - Taylor & Francis Inc - Plusbog.dk

Meet the challenges of high stakes testing in the practice of school psychology School psychologists can be a positive influence on how students, teachers, parents, schools, and communities cope with the challenges and opportunities associated with high stakes testing. Unfortunately, there has been a significant lack of literature to guide school psychologists and related school-based practitioners on this topic. High Stakes Testing: New Challenges and Opportunities for School Psychology is a timely groundbreaking book that provides useful and thought-provoking information to help psychologists meet the challenges of high stakes testing and create new roles for themselves in helping children succeed. This book discusses practical ways to help provide academic support to facilitate student success on high stakes tests, reduce the impact of stress associated with high stakes testing, assess the data from the tests to improve programs, and take a leadership role in the appropriate use of the tests. The No Child Left Behind Act of 2001(NCLB) and its accountability provisions has helped create and sustain a climate where student performance on state-created achievement tests often has high stakes implications for students, families, and schools. High Stakes Testing: New Challenges and Opportunities for School Psychology provides important background information about high stakes testing, including the legal, historical, and political context of high stakes testing, pertinent psychometrics, and a review of research on academic and non-academic outcomes as it relates to high stakes testing. Using this information as a foundation, the book then identifies new roles and opportunities for school psychologists with respect to high stakes testing. This book is comprehensively referenced. Topics in High Stakes Testing: New Challenges and Opportunities for School Psychology include: - - advocating for the appropriate use of state-wide assessments - - the influence of item response theory (IRT) on the development of high stakes tests - - whether the accountability system of NCLB is truly improving student’s learning - - the impact of high stakes tests on classroom instruction and student motivation - - strategies for helping students succeed on high stakes tests - - available resources to cope with the stress of high stakes testing - - - and more High Stakes Testing: New Challenges and Opportunities for School Psychology is a thought-provoking, horizon-expanding resource for school psychologists, public school educators, administrators, school counselors, curriculum coordinators, and special education teachers involved in organizing, administering, and preparing students to take high stakes tests.

DKK 661.00

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Thermal-Aware Testing of Digital VLSI Circuits and Systems - Santanu (department Of Electronics And Electrical Communication Engineering Chattopadhyay

This book aims to highlight the research activities in the domain of thermal-aware testing. Thermal-aware testing can be employed both at circuit level and at system level - - Describes range of algorithms for addressing thermal-aware test issue, presents comparison of temperature reduction with power-aware techniques and include results on benchmark circuits and systems for different techniques - This book will be suitable for researchers working on power- and thermal-aware design and the testing of digital VLSI chips

DKK 637.00

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How to Reduce the Cost of Software Testing - - Bog - Taylor & Francis Inc - Plusbog.dk

Plenty of software testing books tell you how to test well; this one tells you how to do it while decreasing your testing budget. A series of essays written by some of the leading minds in software testing, How to Reduce the Cost of Software Testing provides tips, tactics, and techniques to help readers accelerate the testing process, improve the performance of the test teams, and lower costs. The distinguished team of contributors—that includes corporate test leaders, best paper authors, and keynote speakers from leading software testing conferences—supply concrete suggestions on how to find cost savings without sacrificing outcome. Detailing strategies that testers can immediately put to use to reduce costs, the book explains how to make testing nimble, how to remove bottlenecks in the testing process, and how to locate and track defects efficiently and effectively. Written in language accessible to non-technical executives, as well as those doing the testing, the book considers the latest advances in test automation, ideology, and technology. Rather than present the perspective of one or two experts in software testing, it supplies the wide-ranging perspectives of a team of experts to help ensure your team can deliver a completed test cycle in less time, with more confidence, and reduced costs.

DKK 680.00

1

Software Testing 2020 - Mukesh (qa Infotech Pvt. Ltd. Sharma - Bog - Taylor & Francis Inc - Plusbog.dk

Software testing is at a very important crossroad, where it is going back to the roots on certain fronts while moving inexorably forward. For instance, test automation is growing in prominence, but manual testing is becoming a niche; we are increasingly collaborating with the developers, breaking the bounds of unrealistic independence in testing, and bringing in true conscious quality. At such an important stage, it is important to take stock of the past, present, and future to define both the direction the discipline will take as well as the careers it will entail for testers. This book looks at a range of topics covering where we are in the product development landscape today, what are the varied disciplines at play, what are the influencing factors bringing in a change in software testing, why is such change important, what did the past look like, what is current decade turning out to be like, and where are we heading. As for future, it looks at it both from near-term and long-term perspectives. It also considers whether the testing fraternity is ready to take on such changes and are empowered enough to do so, or are there gaps that need to be filled. The book closes with perspectives from industry experts on what is in store for the software testing discipline and community in the coming years. After reading the book, you will be confident that you can take on what is in store for testers in the coming years. You will also be positioned to help the industry move to the next level, and influence change not just amongst testers but also in the product engineering industry level as a whole.

DKK 486.00

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Introduction to Combinatorial Testing - D. Richard Kuhn - Bog - Taylor & Francis Inc - Plusbog.dk

Combinatorial testing of software analyzes interactions among variables using a very small number of tests. This advanced approach has demonstrated success in providing strong, low-cost testing in real-world situations. Introduction to Combinatorial Testing presents a complete self-contained tutorial on advanced combinatorial testing methods for real-world software. The book introduces key concepts and procedures of combinatorial testing, explains how to use software tools for generating combinatorial tests, and shows how this approach can be integrated with existing practice. Detailed explanations and examples clarify how and why to use various techniques. Sections on cost and practical considerations describe tradeoffs and limitations that may impact resources or funding. While the authors introduce some of the theory and mathematics of combinatorial methods, readers can use the methods without in-depth knowledge of the underlying mathematics. Accessible to undergraduate students and researchers in computer science and engineering, this book illustrates the practical application of combinatorial methods in software testing. Giving pointers to freely available tools and offering resources on a supplementary website, the book encourages readers to apply these methods in their own testing projects.

DKK 690.00

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Crosscutting Social Circles - Testing a Macrostructural Theory of Intergroup Relations - Bog af Joseph Schwartz - Paperback

DKK 522.95

2

Improving Testing - - Bog - Taylor & Francis Inc - Plusbog.dk

The primary purpose of this book is to demonstrate how proven quality assurance tools and methods that have been applied successfully in the manufacturing and service industries for the past 20 years can be applied in the testing industry. It defines what is meant by the term "quality" in testing and reviews how three business process concepts – standards, process planning and design, and continuous improvement – can be used to improve the way in which tests are designed, administered, scored and reported so that errors can be eliminated.

DKK 545.00

3

Cram Session in Manual Muscle Testing - Lynn Van Ost - Bog - Taylor & Francis Inc - Plusbog.dk

When all you need is a basic understanding of manual muscle testing. When concise and illustrative examples of manual muscle testing techniques will provide exactly what the rehabilitation professional needs, look to Cram Session in Manual Muscle Testing: A Handbook for Students & Clinicians for quick and “at your fingertips” facts. Cram Session in Manual Muscle Testing: A Handbook for Students & Clinicians by Lynn Van Ost is a succinct and descriptive quick reference that provides the rehabilitation professional with a very basic approach to various manual muscle techniques. Organized in a “head to toe” format, Cram Session in Manual Muscle Testing: A Handbook for Students & Clinicians takes user-friendly and efficient learning to a new level. What is in your “Cram Session”: - Photographs depicting each manual muscle testing technique - Breakdown of each body region covered - Sections include average range of motion, prime movers, accessory muscles, patient positioning, muscle grading for each movement and substitutions - Over 200 photographs Cram Session in Manual Muscle Testing: A Handbook for Students & Clinicians is an informative, well-organized handbook for all students and clinicians in physical therapy, occupational therapy, athletic training, orthopedics or any allied health professional who treats musculoskeletal disorders

DKK 597.00

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