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Discrimination In Testing
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Book Synopsis Discrimination Testing in Sensory Science by : Lauren Rogers
Download or read book Discrimination Testing in Sensory Science written by Lauren Rogers and published by Woodhead Publishing. This book was released on 2017-09-29 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discrimination Testing in Sensory Science: A Practical Handbook is a one-stop-shop for practical advice and guidance on the performance and analysis of discrimination testing in sensory science. The book covers all aspects of difference testing: the history and origin of different methods, the practicalities of setting up a difference test, replications, the statistics behind each test, dealing with the analysis, action standards, and the statistical analysis of results with R. The book is written by sensory science experts from both academia and industry, and edited by an independent sensory scientist with over twenty years of experience in planning, running and analyzing discrimination tests. This is an essential text for academics in sensory and consumer science and any sensory scientist working in research and development in food, home, and personal care products, new product development, or quality control. Contains practical guidance on the performance and analysis of discrimination testing in sensory and consumer science for both food and non-food products Includes the latest developments in difference testing, including both new methods and state-of-the-art approaches Features extensive coverage of analysis with a variety of software systems Provides essential insight for academics in sensory and consumer science and any sensory scientist working in research and development in food, home, and personal care products, new product development, or quality control
Book Synopsis Sensory Evaluation of Food by : Harry T. Lawless
Download or read book Sensory Evaluation of Food written by Harry T. Lawless and published by Springer Science & Business Media. This book was released on 2010-09-27 with total page 603 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ?eld of sensory science has grown exponentially since the publication of the p- vious version of this work. Fifteen years ago the journal Food Quality and Preference was fairly new. Now it holds an eminent position as a venue for research on sensory test methods (among many other topics). Hundreds of articles relevant to sensory testing have appeared in that and in other journals such as the Journal of Sensory Studies. Knowledge of the intricate cellular processes in chemoreception, as well as their genetic basis, has undergone nothing less than a revolution, culminating in the award of the Nobel Prize to Buck and Axel in 2004 for their discovery of the olfactory receptor gene super family. Advances in statistical methodology have accelerated as well. Sensometrics meetings are now vigorous and well-attended annual events. Ideas like Thurstonian modeling were not widely embraced 15 years ago, but now seem to be part of the everyday thought process of many sensory scientists. And yet, some things stay the same. Sensory testing will always involve human participants. Humans are tough measuring instruments to work with. They come with varying degrees of acumen, training, experiences, differing genetic equipment, sensory capabilities, and of course, different preferences. Human foibles and their associated error variance will continue to place a limitation on sensory tests and actionable results. Reducing, controlling, partitioning, and explaining error variance are all at the heart of good test methods and practices.
Book Synopsis Sensory Discrimination Tests and Measurements by : Jian Bi
Download or read book Sensory Discrimination Tests and Measurements written by Jian Bi and published by John Wiley & Sons. This book was released on 2015-10-12 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sensory testing and measurement are the main functions of sensory analysis. In recent years, the sensory and consumer field has evolved to include both difference testing and similarity testing, and new sensory discrimination methods such as the tetrads have received more attention in the literature. This second edition of Sensory Discrimination Tests and Measurements is updated throughout and responds to these changes and includes: A wide range of sensory measurements: Measurements of sensory effect (d', R-index and Gini-index); Measurements of performance of trained sensory panel (Intraclass correlation coefficients and Cronbachs coefficient alpha); Measurements of relative importance of correlated sensory and consumer attributes (drivers of consumer liking or purchase intent); Measurements of consumer emotions and psychographics; Measurements of time-intensity; Measurements of sensory thresholds; Measurements of sensory risk with negative sensory effects (Benchmark Dose, BMD, methodology) Measurements of sensory shelf life (SSL). A balanced introduction of sensory discrimination tests including difference tests and similarity tests. Bayesian approach to sensory discrimination tests. Modified and multiple-sample discrimination tests. Replicated discrimination tests using the beta-binomial (BB), corrected beta-binomial (CBB), and Dirichlet-multinomial (DM) models. Sensory discrimination methods including the tetrads and the M+N. R and S-Plus codes for all the measurements and tests introduced in the book. Mainly intended for researchers and practitioners in the sensory and consumer field, the book is a useful reference for modern sensory analysis and consumer research, especially for sensometrics.
Book Synopsis Measuring Racial Discrimination by : National Research Council
Download or read book Measuring Racial Discrimination written by National Research Council and published by National Academies Press. This book was released on 2004-07-24 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many racial and ethnic groups in the United States, including blacks, Hispanics, Asians, American Indians, and others, have historically faced severe discriminationâ€"pervasive and open denial of civil, social, political, educational, and economic opportunities. Today, large differences among racial and ethnic groups continue to exist in employment, income and wealth, housing, education, criminal justice, health, and other areas. While many factors may contribute to such differences, their size and extent suggest that various forms of discriminatory treatment persist in U.S. society and serve to undercut the achievement of equal opportunity. Measuring Racial Discrimination considers the definition of race and racial discrimination, reviews the existing techniques used to measure racial discrimination, and identifies new tools and areas for future research. The book conducts a thorough evaluation of current methodologies for a wide range of circumstances in which racial discrimination may occur, and makes recommendations on how to better assess the presence and effects of discrimination.
Book Synopsis Sensory Evaluation Practices by : Herbert Stone
Download or read book Sensory Evaluation Practices written by Herbert Stone and published by Elsevier. This book was released on 2012-12-02 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sensory Evaluation Practices examines the principles and practices of sensory evaluation. It describes methods and procedures for the analysis of results from sensory tests; explains the reasons for selecting a particular procedure or test method; and discusses the organization and operation of a testing program, the design of a test facility, and the interpretation of results. Comprised of three parts encompassing nine chapters, this volume begins with an overview of sensory evaluation: what it does; how, where, and for whom; and its origin in physiology and psychology. It then discusses measurement, psychological errors in testing, statistics, test strategy, and experimental design. The reader is also introduced to the discrimination, descriptive, and affective methods of testing, along with the criteria used to select a specific method, procedures for data analysis, and the communication of actionable results. The book concludes by looking at problems where sensory evaluation is applicable, including correlation of instrumental and sensory data, measurement of perceived efficacy, storage testing, and product optimization. This book is a valuable resource for sensory professionals, product development and production specialists, research directors, technical managers, and professionals involved in marketing, marketing research, and advertising.
Book Synopsis The Economics of Discrimination by : Gary S. Becker
Download or read book The Economics of Discrimination written by Gary S. Becker and published by University of Chicago Press. This book was released on 2010-08-15 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition of Gary S. Becker's The Economics of Discrimination has been expanded to include three further discussions of the problem and an entirely new introduction which considers the contributions made by others in recent years and some of the more important problems remaining. Mr. Becker's work confronts the economic effects of discrimination in the market place because of race, religion, sex, color, social class, personality, or other non-pecuniary considerations. He demonstrates that discrimination in the market place by any group reduces their own real incomes as well as those of the minority. The original edition of The Economics of Discrimination was warmly received by economists, sociologists, and psychologists alike for focusing the discerning eye of economic analysis upon a vital social problem—discrimination in the market place. "This is an unusual book; not only is it filled with ingenious theorizing but the implications of the theory are boldly confronted with facts. . . . The intimate relation of the theory and observation has resulted in a book of great vitality on a subject whose interest and importance are obvious."—M.W. Reder, American Economic Review "The author's solution to the problem of measuring the motive behind actual discrimination is something of a tour de force. . . . Sociologists in the field of race relations will wish to read this book."—Karl Schuessler, American Sociological Review
Book Synopsis Discrimination Testing in Sensory Evaluation by : Lauren Rogers
Download or read book Discrimination Testing in Sensory Evaluation written by Lauren Rogers and published by John Wiley & Sons. This book was released on 2024-08-09 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discrimination Testing in Sensory Evaluation Provides a complete and unified approach to discrimination testing in sensory evaluation Sensory evaluation has evolved from simple "taste testing" to a distinct scientific discipline. Today, the application of sensory evaluation has grown beyond the food industry—it is a sophisticated decision-making tool used by marketing, research and development, and assurance in industries such as personal care, household care, cosmetics, fragrances, automobile manufacturing, and many others. Sensory evaluation is now a critical component in determining and understanding consumer acceptance and behavior. Discrimination Testing in Sensory Evaluation provides insights into the application of sensory evaluation throughout the entire product life cycle, from development to marketing. Filled with practical information and step-by-step guidance, this unique reference is designed to help users apply paired comparison tests, duo-trio tests, triangle tests, similarity tests, and various other discrimination tests in a broad range of product applications. Comprehensive chapters written by leading experts provide up-to-date coverage of traditional and cutting-edge techniques and applications in the field. Addresses the theoretical, methodological, and practical aspects of discrimination testing Covers a broad range of products and all of the senses Describes basic and more complex discrimination techniques Discusses the real-world application of discrimination testing in sensory evaluation Explains different models in discrimination testing, such as signal detection theory and Thurstonian modelling Features detailed case studies for various tests such as A- not AR, 2-AFC, and Ranking among others to enable practitioners to perform each technique Discrimination Testing in Sensory Evaluation is an indispensable reference and guide for sensory scientists, in academia and industry, as well as professionals working in R&D, quality assurance and control, and marketing. It is also an excellent textbook for university courses and industry vocational programs in Sensory Science.
Book Synopsis Improving Current Discrimination Testing Procedures by : Jason Ping Zhang
Download or read book Improving Current Discrimination Testing Procedures written by Jason Ping Zhang and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This Ph.D. dissertation will focus on the comparison of newly developed and innovative difference testing protocols. For one of these tests, the self-specified difference test, different self-specification procedures were compared to find one most practical and most likely to provide descriptive insight into the difference between products. The first chapter features an experiment that focuses on performance between the commonly-used triangle test and the tetrad test, whose popularity has been increasing in many sensory science journals due to its statistical power. This experiment utilized both a set of slightly saline solutions, a simple model system, and a set of commercially available black teas, a complex beverage system. The tetrad demonstrated higher statistical power using both procedures, although memory effects were shown to decrease d′. This supports a few reports in scientific literature exploring the possibility of the tetrad test replacing the triangle test for current difference testing practices. The second chapter includes a set of three experiments designed to explore a “self-specifying” difference testing procedure. The first experiment used a stimulus set consisting of purified water with small amounts of aseptically-packaged orange juice. A “Freely Self-Specified 3-AFC” (SS[subscript f]-3AFC) procedure was used, where the judge was able to describe the difference between two stimuli with little restriction. The performance of the test was comparable to triangle and tetrad performances, but the descriptive data was difficult to interpret with great integrity The second experiment used a stimulus set consisting of uncarbonated cola-flavored solutions. A “Suggested Self-Specified 3-AFC” (SS[subscript s]-3AFC) procedure was used, where the judges were encouraged to use hedonic preferences, or other terms, such as memorability or noticeability, to describe the difference if they preferred it over generating their own term. This procedure performed better than both a triangle test and a 3-AFC test. The 3-AFC has shown weakness when the description may not accurately represent the actual difference. Due to the availability of many options, the descriptive data was spread over too many descriptor words to be used with great integrity. The third experiment used a stimulus set consisting of purified water and slightly saline solution, similar to the model set in the first chapter. A “Self-Specified 2-AFC” (SS-2AFC) procedure was used, where the judges gave both a preference between the two samples and a short description of the difference between the two, declaring one stimulus has having more or less of an attribute or declaring the presence or absence of an attribute. It was seen to have superior performance to a same-different test with a preview (SDwP) and was at parity to a 2-AFC procedure with a warm-up. The tetrad test did perform better than the SS-2AFC. The third chapter consists of a single experiment run using noisy, consumer conditions, using a solid food product. A stimulus set consisting of regular and light versions of a commercially available string cheese product was used. Subjects discriminated between the two products using SDwP, SS-2AFC, and tetrad tests. The SS-2AFC was seen to be the most powerful method. Using the preference and descriptive data, the difference test also supported the regular string cheese to be more flavorful, salty, and is generally the preferred product.
Book Synopsis Procedures for Testing Color Vision by :
Download or read book Procedures for Testing Color Vision written by and published by National Academies Press. This book was released on 1981-01-01 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Clinical Implications of Speech Discrimination Testing Using Nonsense Stimuli by : Bradly J. Edgerton
Download or read book Clinical Implications of Speech Discrimination Testing Using Nonsense Stimuli written by Bradly J. Edgerton and published by . This book was released on 1979 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Detection Theory by : Neil A. Macmillan
Download or read book Detection Theory written by Neil A. Macmillan and published by Psychology Press. This book was released on 2004-09-22 with total page 599 pages. Available in PDF, EPUB and Kindle. Book excerpt: Detection Theory is an introduction to one of the most important tools for analysis of data where choices must be made and performance is not perfect. Originally developed for evaluation of electronic detection, detection theory was adopted by psychologists as a way to understand sensory decision making, then embraced by students of human memory. It has since been utilized in areas as diverse as animal behavior and X-ray diagnosis. This book covers the basic principles of detection theory, with separate initial chapters on measuring detection and evaluating decision criteria. Some other features include: *complete tools for application, including flowcharts, tables, pointers, and software; *student-friendly language; *complete coverage of content area, including both one-dimensional and multidimensional models; *separate, systematic coverage of sensitivity and response bias measurement; *integrated treatment of threshold and nonparametric approaches; *an organized, tutorial level introduction to multidimensional detection theory; *popular discrimination paradigms presented as applications of multidimensional detection theory; and *a new chapter on ideal observers and an updated chapter on adaptive threshold measurement. This up-to-date summary of signal detection theory is both a self-contained reference work for users and a readable text for graduate students and other researchers learning the material either in courses or on their own.
Book Synopsis Housing Discrimination Testing by : Erik A. Skinner
Download or read book Housing Discrimination Testing written by Erik A. Skinner and published by . This book was released on 2001 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pattern Discrimination by : Clemens Apprich
Download or read book Pattern Discrimination written by Clemens Apprich and published by U of Minnesota Press. This book was released on 2018-11-13 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: How do “human” prejudices reemerge in algorithmic cultures allegedly devised to be blind to them? How do “human” prejudices reemerge in algorithmic cultures allegedly devised to be blind to them? To answer this question, this book investigates a fundamental axiom in computer science: pattern discrimination. By imposing identity on input data, in order to filter—that is, to discriminate—signals from noise, patterns become a highly political issue. Algorithmic identity politics reinstate old forms of social segregation, such as class, race, and gender, through defaults and paradigmatic assumptions about the homophilic nature of connection. Instead of providing a more “objective” basis of decision making, machine-learning algorithms deepen bias and further inscribe inequality into media. Yet pattern discrimination is an essential part of human—and nonhuman—cognition. Bringing together media thinkers and artists from the United States and Germany, this volume asks the urgent questions: How can we discriminate without being discriminatory? How can we filter information out of data without reinserting racist, sexist, and classist beliefs? How can we queer homophilic tendencies within digital cultures?
Book Synopsis Analyzing Information on Women-Owned Small Businesses in Federal Contracting by : National Research Council
Download or read book Analyzing Information on Women-Owned Small Businesses in Federal Contracting written by National Research Council and published by National Academies Press. This book was released on 2005-03-28 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: It has been clear for at least 50 years the disadvantages that small businesses face in competing for U.S. government contracts. The Small Business Act of 1953 created the Small Business Administration (SBA), an independent agency in the executive branch that counsels and assists specific types of small businesses including firms owned by minorities and other socially and economically disadvantaged individuals and firms owned by women. Women-owned small businesses, however, are underrepresented or substantially underrepresented in some industries. In 2002, the SBA Office of Federal Contract Assistance for Women Business Owners (CAWBO) organized a draft study containing a preliminary set of approximations of the representation of women-owned small businesses in federal prime contracts over $25,000 by industry. Because of the past legal challenges to race- and gender-conscious contracting programs at the federal and local levels, the SBA asked the Committee on National Statistics of the National Academies to conduct an independent review of relevant data and estimation methods prior to finalizing the CAWBO study. The Steering Committee on Women-Owned Small Businesses in Federal Contracting was created and charged with holding a workshop to discuss topics including the accuracy of data and methods to estimate the use of women-owned small businesses in federal contracting and the definition of "underrepresentation" and "substantial underrepresentation" in designating industries for which preferential contracting programs might be warranted. Analyzing Information on Women-Owned Small Businesses in Federal Contracting presents the committee's report as well as the recommendations that committees have made.
Book Synopsis Developing and Validating Multiple-choice Test Items by : Thomas M. Haladyna
Download or read book Developing and Validating Multiple-choice Test Items written by Thomas M. Haladyna and published by Psychology Press. This book was released on 2004 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most comprehensive and authoritative book in its field, this edition has been extensively revised and updated. This book is intended for anyone who develops test items for large-scale assessments, as well as teachers and graduate students who de
Book Synopsis Psychological Testing in the Service of Disability Determination by : Institute of Medicine
Download or read book Psychological Testing in the Service of Disability Determination written by Institute of Medicine and published by National Academies Press. This book was released on 2015-06-29 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States Social Security Administration (SSA) administers two disability programs: Social Security Disability Insurance (SSDI), for disabled individuals, and their dependent family members, who have worked and contributed to the Social Security trust funds, and Supplemental Security Income (SSSI), which is a means-tested program based on income and financial assets for adults aged 65 years or older and disabled adults and children. Both programs require that claimants have a disability and meet specific medical criteria in order to qualify for benefits. SSA establishes the presence of a medically-determined impairment in individuals with mental disorders other than intellectual disability through the use of standard diagnostic criteria, which include symptoms and signs. These impairments are established largely on reports of signs and symptoms of impairment and functional limitation. Psychological Testing in the Service of Disability Determination considers the use of psychological tests in evaluating disability claims submitted to the SSA. This report critically reviews selected psychological tests, including symptom validity tests, that could contribute to SSA disability determinations. The report discusses the possible uses of such tests and their contribution to disability determinations. Psychological Testing in the Service of Disability Determination discusses testing norms, qualifications for administration of tests, administration of tests, and reporting results. The recommendations of this report will help SSA improve the consistency and accuracy of disability determination in certain cases.
Book Synopsis Advancing Human Assessment by : Randy E. Bennett
Download or read book Advancing Human Assessment written by Randy E. Bennett and published by Springer. This book was released on 2017-10-17 with total page 717 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is open access under a CC BY-NC 2.5 license. This book describes the extensive contributions made toward the advancement of human assessment by scientists from one of the world’s leading research institutions, Educational Testing Service. The book’s four major sections detail research and development in measurement and statistics, education policy analysis and evaluation, scientific psychology, and validity. Many of the developments presented have become de-facto standards in educational and psychological measurement, including in item response theory (IRT), linking and equating, differential item functioning (DIF), and educational surveys like the National Assessment of Educational Progress (NAEP), the Programme of international Student Assessment (PISA), the Progress of International Reading Literacy Study (PIRLS) and the Trends in Mathematics and Science Study (TIMSS). In addition to its comprehensive coverage of contributions to the theory and methodology of educational and psychological measurement and statistics, the book gives significant attention to ETS work in cognitive, personality, developmental, and social psychology, and to education policy analysis and program evaluation. The chapter authors are long-standing experts who provide broad coverage and thoughtful insights that build upon decades of experience in research and best practices for measurement, evaluation, scientific psychology, and education policy analysis. Opening with a chapter on the genesis of ETS and closing with a synthesis of the enormously diverse set of contributions made over its 70-year history, the book is a useful resource for all interested in the improvement of human assessment.
