Quantifying Quality in Primary Care, Graves, Peter
Автор: Sauro, Jeff Название: Quantifying the User Experience ISBN: 0128023082 ISBN-13(EAN): 9780128023082 Издательство: Elsevier Science Рейтинг: Цена: 7241.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: "
Quantifying the User Experience: Practical Statistics for User Research, Second Edition, " provides practitioners and researchers with the information they need to confidently quantify, qualify, and justify their data. The book presents a practical guide on how to use statistics to solve common quantitative problems that arise in user research. It addresses questions users face every day, including, Is the current product more usable than our competition? Can we be sure at least 70% of users can complete the task on their first attempt? How long will it take users to purchase products on the website?
This book provides a foundation for statistical theories and the best practices needed to apply them. The authors draw on decades of statistical literature from human factors, industrial engineering, and psychology, as well as their own published research, providing both concrete solutions (Excel formulas and links to their own web-calculators), along with an engaging discussion on the statistical reasons why tests work and how to effectively communicate results. Throughout this new edition, users will find updates on standardized usability questionnaires, a new chapter on general linear modeling (correlation, regression, and analysis of variance), with updated examples and case studies throughout. Completely updated to provide practical guidance on solving usability testing problems with statistics for any project, including those using Six Sigma practicesIncludes new and revised information on standardized usability questionnaires, as well as general linear modeling (correlation, regression, and analysis of variance)Shows practitioners which test to use, why they work, and best practices for application, along with easy-to-use Excel formulas and web-calculators for analyzing dataRecommends ways for researchers and practitioners to communicate results to stakeholders in plain English
Автор: Doser Kelly B., Bloechl Timothy D. Название: Quantifying the Protonospheric Effect on Prism ISBN: 1288289081 ISBN-13(EAN): 9781288289080 Издательство: Неизвестно Рейтинг: Цена: 10658.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Over the past century, the world has seen a sustained decline in the proportion of people living in poverty, but climate change could challenge poverty reduction efforts. On the Poverty and Welfare Impacts of Climate Change: Quantifying the Effects, Identifying the Adaptation Strategies surveys the relevant research on how climate change may affect global poverty rates and presents country-specific studies with implications for low-income rural populations as well as governments’ risk management programs. An evidence review examines three main strands of the literature. Unsurprisingly, the impacts of climate change are shown to be generally regressive—falling more heavily on the poor than on the rich. However, most estimates have tended to ignore the effect of aggregate economic growth on poverty and household welfare. With continued growth, the evidence suggests that the poverty impact will be relatively modest and will not reverse the major decline in poverty expected over the next 40 years. Sector-specific studies—focusing on how climate change may affect agricultural yields—are generally poor predictors of national-level poverty impacts because of heterogeneity in the ability of households to adapt. That heterogeneity features prominently in studies of how weather shocks affect rural households in Indonesia and Mexico. Erratic deviations from long-term weather patterns affect growing cycles and thereby rural households’ consumption (per capita expenditure) and health indicators. In Indonesia, the affected households appeared able to protect food expenditures at the expense of nonfood expenditures, and their access to credit and community public-works projects had the strongest moderating effects. In Mexico, weather shocks affected both food and nonfood consumption in ways that varied by both region and timing. The affected households’ ability to smooth consumption depended on factors including proximity to bus stations. In some regions, weather shocks also had measurable stunting effects on the stature of children between 12 and 47 months of age, perhaps from changes in household income, increases in communicable diseases, or both. Overall, more region-specific analyses within more finely tuned climate categories will help researchers to better estimate the effects of climate change on poverty and the effectiveness of government-level strategies to address those effects. This book will be of interest to academics, and decision makers in government and nongovernmental organizations, seeking to design climate-smart poverty alleviation and safety net programs based on evidence.
Описание: With clear, step-by-step examples and inclusion of techniques that can be applied to a variety of settings, this book lays out a systematic approach to comparative case analysis based on fundamental insights of information theory
Описание: Drylands account for three-quarters of Sub-Saharan Africa's cropland, two-thirds of cereal production, and four-fifths of livestock holdings. Today frequent and severe shocks, especially droughts, limit the livelihood opportunities available to millions of households and undermine efforts to eradicate poverty in the drylands. Prospects for sustainable development of drylands are assessed in this book through the lens of resilience, understood here to mean the ability of people to withstand and respond to droughts and other shocks. An original model was developed expressly to consistently and coherently evaluate different type of interventions on the ground, which provided a common framework to anticipate the scale of the challenges likely to arise in drylands, as well as to generate insights into opportunities for addressing those challenges.Such modelling framework consisted in a) estimating the baseline vulnerability profiles of people living in drylands (2010), b) estimate the evolution of vulnerability by 2030 under a range of assumptions, c) calculated the number of people affected by drought in the different administrative units of each country, and d) evaluate different types of interventions in agriculture and livestock for mitigating drought impact by calculating the potential for reducing the number of people affected for each scenario and conducting a simplified · benefit/cost (B/C) analysis for each type of intervention.For livestock, simulation models were used to estimate the impacts of feed balances, livestock production, and household income resilience interventions under different climate scenarios). For agriculture, the DSSAT (Decision Support System for Agrotechnology Transfer) framework was used to assess the potential impact on yields likely to result from adoption of five crop farming technologies: (1) drought-tolerant varieties, (2) heat-tolerant varieties, (3) additional fertilizer, (4) agroforestry practices, (S) irrigation (6) water-harvesting techniques and selected combinations thereof.
