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Author: United States. Army. Corps of Engineers
Publisher:
ISBN:
Category : Civil engineering
Languages : en
Pages : 306
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Book Description
Author: United States. Army. Corps of Engineers
Publisher:
ISBN:
Category : Civil engineering
Languages : en
Pages : 306
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Book Description
Author: U. S. Department of Agriculture
Publisher: Lulu.com
ISBN: 9781329665033
Category : Reference
Languages : en
Pages : 530
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Book Description
For any measurement program that collects analytical data over a long period of time for comparative purposes, the quality and credibility of those data are critical (Taylor, 1988). It is equally critical that the data can be easily understood by the user. The uses of these data include, but are not limited to, routine soil characterization, special analyses, soil classification, interpretations, and soil genesis and geomorphology studies. Because of the diverse uses of these data, it follows that pedon characterization data, or any soil survey data, are more appropriately used when the operations for collection, analysis, and reporting of these data are well understood. Results differ when different methods are used, even though these methods may carry the same name or concept. Comparison of one bit of data with another is difficult without knowing how both bits were gathered. As a result, operational definitions have been developed and are linked to specific methods.
Author: United States. Soil Conservation Service
Publisher:
ISBN:
Category : Soil surveys
Languages : en
Pages : 116
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Author:
Publisher:
ISBN:
Category : Soil surveys
Languages : en
Pages : 170
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Book Description
Author:
Publisher:
ISBN:
Category : Civil engineering
Languages : en
Pages : 0
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 158
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Book Description
Author: United States. Army. Corps of Engineers
Publisher:
ISBN:
Category : Civil engineering
Languages : en
Pages : 298
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Book Description
Author: U.S. Department of Agriculture
Publisher: Lulu.com
ISBN: 0359573517
Category : Reference
Languages : en
Pages : 488
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Book Description
Field and laboratory data are critical to the understanding of the properties and genesis of a single pedon, as well as to the understanding of fundamental soil relationships based on many observations of a large number of soils. Key to the advancement of this body of knowledge has been the cumulative effort of several generations of scientists in developing methods, designing and developing analytical databases, and investigating soil relationships based on these data. Methods development result from a broad knowledge of soils, encompassing topical areas of pedology, geomorphology, micromorphology, physics, chemistry, mineralogy, biology, and field and laboratory sample collection and preparation. The purpose of this manual, the ?Soil Survey Field and Laboratory Methods Manual, Soil Survey Investigations Report (SSIR) No. 51, ? is to (1) serve as a standard reference in the description of site and soils sampling strategies and assessment techniques and (2) provide..
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Paul J. Lavrakas
Publisher: SAGE Publications
ISBN: 150631788X
Category : Social Science
Languages : en
Pages : 1073
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Book Description
To the uninformed, surveys appear to be an easy type of research to design and conduct, but when students and professionals delve deeper, they encounter the vast complexities that the range and practice of survey methods present. To complicate matters, technology has rapidly affected the way surveys can be conducted; today, surveys are conducted via cell phone, the Internet, email, interactive voice response, and other technology-based modes. Thus, students, researchers, and professionals need both a comprehensive understanding of these complexities and a revised set of tools to meet the challenges. In conjunction with top survey researchers around the world and with Nielsen Media Research serving as the corporate sponsor, the Encyclopedia of Survey Research Methods presents state-of-the-art information and methodological examples from the field of survey research. Although there are other "how-to" guides and references texts on survey research, none is as comprehensive as this Encyclopedia, and none presents the material in such a focused and approachable manner. With more than 600 entries, this resource uses a Total Survey Error perspective that considers all aspects of possible survey error from a cost-benefit standpoint. Key Features Covers all major facets of survey research methodology, from selecting the sample design and the sampling frame, designing and pretesting the questionnaire, data collection, and data coding, to the thorny issues surrounding diminishing response rates, confidentiality, privacy, informed consent and other ethical issues, data weighting, and data analyses Presents a Reader′s Guide to organize entries around themes or specific topics and easily guide users to areas of interest Offers cross-referenced terms, a brief listing of Further Readings, and stable Web site URLs following most entries The Encyclopedia of Survey Research Methods is specifically written to appeal to beginning, intermediate, and advanced students, practitioners, researchers, consultants, and consumers of survey-based information.
