Research in social and behavioral sciences has benefited from linear regression models (LRMs) for decades to identify and understand the associations among a set of explanatory variables and an outcome variable. Linear Regression Models: Applications in R provides you with a comprehensive treatment of these models and indispensable guidance about how to estimate them using the R software environment. After furnishing some background material, the author explains how to estimate simple and multiple LRMs in R, including how to interpret their coefficients and understand their assumptions. Several chapters thoroughly describe these assumptions and explain how to determine whether they are satisfied and how to modify the regression model if they are not. The book also includes chapters on specifying the correct model, adjusting for measurement error, understanding the effects of influential observations, and using the model with multilevel data. The concluding chapter presents an alternative model—logistic regression—designed for binary or two-category outcome variables. The book includes appendices that discuss data management and missing data and provides simulations in R to test model assumptions. Features Furnishes a thorough introduction and detailed information about the linear regression model, including how to understand and interpret its results, test assumptions, and adapt the model when assumptions are not satisfied. Uses numerous graphs in R to illustrate the model’s results, assumptions, and other features. Does not assume a background in calculus or linear algebra, rather, an introductory statistics course and familiarity with elementary algebra are sufficient. Provides many examples using real-world datasets relevant to various academic disciplines. Fully integrates the R software environment in its numerous examples. The book is aimed primarily at advanced undergraduate and graduate students in social, behavioral, health sciences, and related disciplines, taking a first course in linear regression. It could also be used for self-study and would make an excellent reference for any researcher in these fields. The R code and detailed examples provided throughout the book equip the reader with an excellent set of tools for conducting research on numerous social and behavioral phenomena. John P. Hoffmann is a professor of sociology at Brigham Young University where he teaches research methods and applied statistics courses and conducts research on substance use and criminal behavior.
The exotic and impressive grave goods from burials of the ‘Wessex Culture’ in Early Bronze Age Britain are well known and have inspired influential social and economic hypotheses, invoking the former existence of chiefs, warriors and merchants and high-ranking pastoralists. Alternative theories have sought to explain the how display of such objects was related to religious and ritual activity rather than to economic status, and that groups of artefacts found in certain graves may have belonged to religious specialists. This volume is the result of a major research that aimed to investigate Chalcolithic and Early Bronze Age grave goods in relation to their possible use as special dress accessories or as equipment employed within ritual activities and ceremonies. Many items of adornment can be shown to have formed elements of elaborate costumes, probably worn by individuals, both male and female, who held important ritual roles within society. Furthermore, the analysis has shown that various categories of object long interpreted as mundane types of tool were in fact items of bodily adornment or implements used in ritual contexts, or in the special embellishment of the human body. Although never intended to form a complete catalogue of all the relevant artefacts from England the volume provides an extensive, and intensively illustrated, overview of a large proportion of the grave goods from English burial sites.
Simultaneous and Successive Cognitive Processes presents some innovative ideas for defining simultaneous and successive cognitive processes by choosing certain tasks that would elicit the use of coding and planning. Factor analysis is used to assess the organization of cognitive functions in terms of coding and planning. The book demonstrates how to isolate coding and planning processes by using a battery of tasks, and extends the approach to complex cognitive areas such as reading, word association, and sentence comprehension. Comprised of 11 chapters, this book begins with an overview of the evolution of the concept of intelligence and some notable workers in the field, including Cyril Burt, Raymond B. Cattell, Jean Piaget, and Jerome Kagan. The discussion then turns to learning theory and cognitive development as the basis for understanding intelligence. Subsequent chapters focus on intellectual functions in terms of the workings of the brain; simultaneous and successive cognitive processing in children; the relationship of simultaneous and successive coding to school achievement; and simultaneous and successive cognitive processing in children with mental retardation and learning disability. The results of cross-cultural studies on cognitive processes are also discussed, together with the link between language functions and cognitive processing. This monograph will be of interest to teachers, school administrators, and educational psychologists.
The South Carolina 3rd Artillery Battalion, also known as the Palmetto Battalion, was organized in December, 1861. Its members were from the counties of Allendale, Richland, Charleston, Georgetown, and Kershaw. For some time the unit served in the Department of South Carolina, Georgia, and Florida, but the companies were frequently detached. Companies A, D, E, G, H, I, and K took part in the battles in and around Charleston. Companies A, G, H, I, and K were included in the surrender of the Army of Tennessee. Companies D, E, and F disbanded after the evacuation of Charleston. Company B fought at Jackson, then saw action in the Atlanta, Tennessee, and North Carolina Campaigns. It surrendered on April 26, 1865. Company C fought at Charleston, Jackson, and Chickamauga, then served at Mobile and surrendered in May, 1865.
Based on nearly five decades of research, this magisterial work is a biographical register and analysis of the people who most directly influenced the course of the Civil War, its high commanders. Numbering 3,396, they include the presidents and their cabinet members, state governors, general officers of the Union and Confederate armies (regular, provisional, volunteers, and militia), and admirals and commodores of the two navies. Civil War High Commands will become a cornerstone reference work on these personalities and the meaning of their commands, and on the Civil War itself. Errors of fact and interpretation concerning the high commanders are legion in the Civil War literature, in reference works as well as in narrative accounts. The present work brings together for the first time in one volume the most reliable facts available, drawn from more than 1,000 sources and including the most recent research. The biographical entries include complete names, birthplaces, important relatives, education, vocations, publications, military grades, wartime assignments, wounds, captures, exchanges, paroles, honors, and place of death and interment. In addition to its main component, the biographies, the volume also includes a number of essays, tables, and synopses designed to clarify previously obscure matters such as the definition of grades and ranks; the difference between commissions in regular, provisional, volunteer, and militia services; the chronology of military laws and executive decisions before, during, and after the war; and the geographical breakdown of command structures. The book is illustrated with 84 new diagrams of all the insignias used throughout the war and with 129 portraits of the most important high commanders.
In the mountains of western North Carolina, the Civil War was fought on different terms than those found throughout most of the South. Though relatively minor strategically, incursions by both Confederate and Union troops disrupted life and threatened the
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