Experimental and Quasi-Experimental Designs for Research PDF Download
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Author: Donald T. Campbell
Publisher: Ravenio Books
ISBN:
Category : Psychology
Languages : en
Pages : 172
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Book Description
We shall examine the validity of 16 experimental designs against 12 common threats to valid inference. By experiment we refer to that portion of research in which variables are manipulated and their effects upon other variables observed. It is well to distinguish the particular role of this chapter. It is not a chapter on experimental design in the Fisher (1925, 1935) tradition, in which an experimenter having complete mastery can schedule treatments and measurements for optimal statistical efficiency, with complexity of design emerging only from that goal of efficiency. Insofar as the designs discussed in the present chapter become complex, it is because of the intransigency of the environment: because, that is, of the experimenter’s lack of complete control.
Author: Donald T. Campbell
Publisher: Ravenio Books
ISBN:
Category : Psychology
Languages : en
Pages : 172
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Book Description
We shall examine the validity of 16 experimental designs against 12 common threats to valid inference. By experiment we refer to that portion of research in which variables are manipulated and their effects upon other variables observed. It is well to distinguish the particular role of this chapter. It is not a chapter on experimental design in the Fisher (1925, 1935) tradition, in which an experimenter having complete mastery can schedule treatments and measurements for optimal statistical efficiency, with complexity of design emerging only from that goal of efficiency. Insofar as the designs discussed in the present chapter become complex, it is because of the intransigency of the environment: because, that is, of the experimenter’s lack of complete control.
Author: Stefan H. Thomke
Publisher: Harvard Business Press
ISBN: 1633697118
Category : Business & Economics
Languages : en
Pages : 266
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Book Description
Don't fly blind. See how the power of experiments works for you. When it comes to improving customer experiences, trying out new business models, or developing new products, even the most experienced managers often get it wrong. They discover that intuition, experience, and big data alone don't work. What does? Running disciplined business experiments. And what if companies roll out new products or introduce new customer experiences without running these experiments? They fly blind. That's what Harvard Business School professor Stefan Thomke shows in this rigorously researched and eye-opening book. It guides you through best practices in business experimentation, illustrates how these practices work at leading companies, and answers some fundamental questions: What makes a good experiment? How do you test in online and brick-and-mortar businesses? In B2B and B2C? How do you build an experimentation culture? Also, best practice means running many experiments. Indeed, some hugely successful companies, such as Amazon, Booking.com, and Microsoft, run tens of thousands of controlled experiments annually, engaging millions of users. Thomke shows us how these and many other organizations prove that experimentation provides significant competitive advantage. How can managers create this capability at their own companies? Essential is developing an experimentation organization that prizes the science of testing and puts the discipline of experimentation at the center of its innovation process. While it once took companies years to develop the tools for such large-scale experiments, advances in technology have put these tools at the fingertips of almost any business professional. By combining the power of software and the rigor of controlled experiments, today's managers can make better decisions, create magical customer experiences, and generate big financial returns. Experimentation Works is your guidebook to a truly new way of thinking and innovating.
Author: Gary W. Oehlert
Publisher: W. H. Freeman
ISBN: 9780716735106
Category : Mathematics
Languages : en
Pages : 600
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Book Description
Oehlert's text is suitable for either a service course for non-statistics graduate students or for statistics majors. Unlike most texts for the one-term grad/upper level course on experimental design, Oehlert's new book offers a superb balance of both analysis and design, presenting three practical themes to students: • when to use various designs • how to analyze the results • how to recognize various design options Also, unlike other older texts, the book is fully oriented toward the use of statistical software in analyzing experiments.
Author: Benjamin Franklin
Publisher:
ISBN:
Category : Electric power
Languages : en
Pages : 102
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Book Description
Author:
Publisher:
ISBN:
Category : Forest products
Languages : en
Pages : 488
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Book Description
Author: Joseph C. Seibert
Publisher: Penguin Group
ISBN:
Category : Business & Economics
Languages : en
Pages : 400
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Book Description
Author: Alain Jolibert
Publisher: Bloomsbury Publishing
ISBN: 0230363679
Category : Business & Economics
Languages : en
Pages : 464
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Book Description
Marketing Management challenges the traditional view of marketing as a function, considering it instead as a series of processes pervading the entire organization and involving most personnel as part-time marketers. The authors argue that every company or institution must manage four main processes: strategic positioning, market intelligence, value creation and value generation. Adopting a global approach, the book focuses on value creation and introduces students to the tools of the marketing mix in a process oriented manner. New to this edition: - New coverage of technology applications and developments and B2B marketing - Consistent focus on value creation throughout - More examples to illustrate theory - Enhanced pedagogy including long case studies and exercises in every chapter With its unique approach and international coverage, this book is essential reading for advanced undergraduate and postgraduate students of Marketing Management and will also appeal to MBA and other post-experience students.
Author:
Publisher: Royal Society of Chemistry
ISBN: 0854049193
Category : Education
Languages : en
Pages : 291
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Book Description
Chemistry is an experimental subject, and what can be more stimulating than carrying out a laboratory experiment where the results are memorable either by their visual nature or by their tying together of theory. This collection of 100 chemistry experiments has been developed with the help and support of teachers throughout the UK. Each student worksheet is accompanied by a teachers' notes sheet which gives details for teachers and technicians on apparatus and chemicals, timing, context, teaching tips, background theory and answers to any questions on the student worksheets. "Classic Chemistry Experiments" is designed as a teaching aid to help communicate the excitement and wonder of chemistry to students, and is ideal for both experienced chemistry teachers and to scientists from other disciplines who are teaching chemistry.
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 92
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Book Description
Author: Bill Gates
Publisher: Knopf Canada
ISBN: 0735280452
Category : Science
Languages : en
Pages : 240
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Book Description
NEW YORK TIMES BESTSELLER NATIONAL BESTSELLER In this urgent, singularly authoritative book, Bill Gates sets out a wide-ranging, practical--and accessible--plan for how the world can get to zero greenhouse gas emissions in time to avoid an irreversible climate catastrophe. Bill Gates has spent a decade investigating the causes and effects of climate change. With the help and guidance of experts in the fields of physics, chemistry, biology, engineering, political science and finance, he has focused on exactly what must be done in order to stop the planet's slide toward certain environmental disaster. In this book, he not only gathers together all the information we need to fully grasp how important it is that we work toward net-zero emissions of greenhouse gases but also details exactly what we need to do to achieve this profoundly important goal. He gives us a clear-eyed description of the challenges we face. He describes the areas in which technology is already helping to reduce emissions; where and how the current technology can be made to function more effectively; where breakthrough technologies are needed, and who is working on these essential innovations. Finally, he lays out a concrete plan for achieving the goal of zero emissions--suggesting not only policies that governments should adopt, but what we as individuals can do to keep our government, our employers and ourselves accountable in this crucial enterprise. As Bill Gates makes clear, achieving zero emissions will not be simple or easy to do, but by following the guidelines he sets out here, it is a goal firmly within our reach.
