Determining Sample Size

Author: Patrick Dattalo
Publisher: Oxford University Press
ISBN: 9780195315493
Release Date: 2008
Genre: Social Science

This text describes the following available approaches for estimating sample size in social work research and discusses their strengths and weaknesses: power analysis; heuristics or rules-of-thumb; confidence intervals; computer-intensive strategies; and ethical and cost considerations.

Social Work Research Methods Oxford Bibliographies Online Research Guide

Author: Allen Rubin
Publisher: Oxford University Press
ISBN: 9780199804863
Release Date: 2010-05-01
Genre:

This ebook is a selective guide designed to help scholars and students of social work find reliable sources of information by directing them to the best available scholarly materials in whatever form or format they appear from books, chapters, and journal articles to online archives, electronic data sets, and blogs. Written by a leading international authority on the subject, the ebook provides bibliographic information supported by direct recommendations about which sources to consult and editorial commentary to make it clear how the cited sources are interrelated related. A reader will discover, for instance, the most reliable introductions and overviews to the topic, and the most important publications on various areas of scholarly interest within this topic. In social work, as in other disciplines, researchers at all levels are drowning in potentially useful scholarly information, and this guide has been created as a tool for cutting through that material to find the exact source you need. This ebook is a static version of an article from Oxford Bibliographies Online: Social Work, a dynamic, continuously updated, online resource designed to provide authoritative guidance through scholarship and other materials relevant to the study and practice of social work. Oxford Bibliographies Online covers most subject disciplines within the social science and humanities, for more information visit www.aboutobo.com.

Sample Size Determination and Power

Author: Thomas P. Ryan
Publisher: John Wiley & Sons
ISBN: 9781118439227
Release Date: 2013-05-28
Genre: Medical

A comprehensive approach to sample size determination and power with applications for a variety of fields Sample Size Determination and Power features a modern introduction to the applicability of sample size determination and provides a variety of discussions on broad topics including epidemiology, microarrays, survival analysis and reliability, design of experiments, regression, and confidence intervals. The book distinctively merges applications from numerous fields such as statistics, biostatistics, the health sciences, and engineering in order to provide a complete introduction to the general statistical use of sample size determination. Advanced topics including multivariate analysis, clinical trials, and quality improvement are addressed, and in addition, the book provides considerable guidance on available software for sample size determination. Written by a well-known author who has extensively class-tested the material, Sample Size Determination and Power: Highlights the applicability of sample size determination and provides extensive literature coverage Presents a modern, general approach to relevant software to guide sample size determination including CATD (computer-aided trial design) Addresses the use of sample size determination in grant proposals and provides up-to-date references for grant investigators An appealing reference book for scientific researchers in a variety of fields, such as statistics, biostatistics, the health sciences, mathematics, ecology, and geology, who use sampling and estimation methods in their work, Sample Size Determination and Power is also an ideal supplementary text for upper-level undergraduate and graduate-level courses in statistical sampling.

Basic Statistics in Multivariate Analysis

Author: Karen A. Randolph
Publisher: Oxford University Press
ISBN: 9780199982141
Release Date: 2013-01-24
Genre: Social Science

The complexity of social problems necessitates that social work researchers understand and apply multivariate statistical methods in their investigations. In this pocket guide, the authors introduce readers to three of the more frequently used multivariate methods in social work research with an emphasis on basic statistics. The primary aim is to prepare entry-level doctoral students and early career social work researchers in the use of multivariate methods by providing an easy-to-understand presentation, building on the basic statistics that inform them. The pocket guide begins with a review of basic statistics, hypothesis testing with inferential statistics, and bivariate analytic methods. Subsequent sections describe bivariate and multiple linear regression analyses, one-way and two-way analysis of variance (ANOVA) and covariance (ANCOVA), and path analysis. In each chapter, the authors introduce the various basic statistical procedures by providing definitions, formulas, descriptions of the underlying logic and assumptions of each procedure, and examples of how they have been used in social work research literature, particularly with diverse populations. They also explain estimation procedures and how to interpret results. The multivariate chapters conclude with brief step-by-step instructions for conducting multiple regression analysis and one-way ANOVA in Statistical Package for the Social Sciences (SPSS), and path analysis in Amos, using data from the National Educational Longitudinal Study of 1988 (NELS: 88). As an additional supplement, the book offers a companion website that provides more detailed instructions, as well as data sets and worked examples.

Conducting Substance Use Research

Author: Audrey L. Begun
Publisher: Oxford University Press
ISBN: 9780199395866
Release Date: 2014-03-05
Genre: Social Science

This book assists new and experienced scholars in planning and conducting high quality, contemporary studies for knowledge building about substance use. The target audience is individuals new to substance use as a field of study, either as novice researchers or as experienced researchers in other areas who find themselves lacking experience to address overlapping issues of substance use. Organized around a translational science framework, the contents address substance use research about epidemiology, etiology, intervention efficacy and effectiveness, and implementation of evidence-informed interventions. In addition, examples and issues are drawn from social work traditions involving multiple levels of study (organisms to large social systems), integrating biopsychosocial aspects, and adopting a lifespan perspective. The authors examine the implications for research of current "great debates" in the field and present readers with a variety of specific substance use research resources and tools. This practical "how to" guide takes the reader step-by-step through issues specific to substance use research in study design, participant recruitment and retention, measurement and analysis, and the processes involved in the dissemination, diffusion, and implementation of evidence-informed innovations. A variety of technical resources and measurement tools are provided, as are references to journals for scholars to consider both as knowledge resources and as outlets for disseminating their work. In sum, this book offers a fresh approach to conducting substance use research that is not readily available in other texts.

Research with Diverse Groups

Author: Antoinette Y. Farmer PhD
Publisher: Oxford University Press
ISBN: 9780199395903
Release Date: 2014-02-27
Genre: Social Science

Social work researchers often conduct research with groups that are diverse in terms of gender, sexual orientation, race or ethnic background, or age. Consequently, social work researchers must take great care to establish research-design equivalence at all phases of the research process (e.g., problem formulation, research design, sampling, measurement selection, data collection, and data analysis); otherwise, the results might reflect methodological flaws rather than true group differences and therefore lead to erroneous conclusions. This book introduces the methodological precautions that must be taken into consideration when conducting research with diverse groups. Multigroup Confirmatory Analysis (MG-CFA) using structural equation modeling (SEM) was utilized to demonstrate how to assess seven types of measurement and structural equivalence that Milfont and Fischer (2010) have deemed important for studies with diverse samples. A hypothetical example was provided to illustrate how to design a study with good research-design equivalence. A case example was provided to demonstrate how to conduct an MG-CFA for each type of measurement and structural equivalence discussed. The Mplus syntax used to conduct the MG-CFA was provided. The results from the MG-CFA analyses were written up as they would be for publication.

Participatory Action Research

Author: Hal A. Lawson
Publisher: Oxford University Press
ISBN: 9780190204402
Release Date: 2015-01-06
Genre: Social Science

As novel, complex social problems increase, especially those involving vulnerable people who reside in challenging places, the limitations of conventional research methods implemented by just one or two investigators become apparent. Research and development alternatives are needed, particularly methods that engage teams of researchers in real world problem solving while simultaneously generating practice- and policy-relevant knowledge. Research methods that effectively tap the expertise of everyday people, especially those impacted by these targeted social problems, are a special priority because academic researchers often lack experiential knowledge that stems from direct, everyday encounters with these vexing problems. Participatory action research (PAR) responds to these manifest needs. It provides a methodological structure and operational guidelines for preparing and deploying people from various walks of life as co-researchers, and it provides a proven strategy for generating practice- and policy-relevant knowledge as problem-solving in real world contexts proceeds.

Key Concepts in Measurement

Author: Brian E. Perron
Publisher: Oxford University Press
ISBN: 9780190235970
Release Date: 2015-03-06
Genre: Social Science

Measurement refers generally to the process of assigning a numeric value to, or ordering characteristics or traits of, entities under study. Measurement is necessary for building and testing theory, specifying problems, and defining goals. It is arguably one of the most important and diffcult tasks in social work research. Social work researchers who are not expert in developing, selecting, and using measures will not be able to contribute maximally to the social work knowledge base. Such knowledge and skills related to measurement ultimately determines the extent to which social work research can effectively inform social policy and social work interventions. This book is to serve as a guide for developing, selecting, and using measures in social work research. In particular, this book provides a detailed review of contemporary validity theory; an update on the major issues of reliability; common errors in measurement of latent variables; and suggestions on measurement of social networks and collectives. An important theme of this book is the focus on the creative potential of measurement - that is, helping social work researchers think about the wide variety of ways that social work concepts can be measured. Reflecting on these differences raises questions about underlying assumptions that in turn inspires creative theoretical insights. Rather than seeing measurement as simply a task to be completed in the research process, we will encourage the reader to think creatively about measurement and theory. This book also addresses the interdependency of measurement and theory construction. In other words, this book covers how measurement and theory are connected in two different ways. First, every measure has its own working theory that relates the measure to the concept being measured. Second, theory construction is dependent on measurement. What we learn using a given measure could be different if a concept was measured in a different way.

A Social Justice Approach to Survey Design and Analysis

Author: Llewellyn Joseph Cornelius
Publisher: Oxford University Press, USA
ISBN: 9780199739301
Release Date: 2014
Genre: Social Science

A Social Justice Approach to Survey Design and Analysis is written for students, teachers, researchers and anyone who is interested in conducting research. It draws heavily on current discussions regarding social justice, equity, health disparities and social determinants of health to provide a framework for researchers to use both to engage in social justice research as well as to evolve as social justice practitioners. This research book includes a framework of the continuum of social justice research, a presentation on how to provide an active voice for the community in the design and exaction of research, examples of social justice data sources along with how researchers have used that data to measure social inequities, and an overview of how to analyze data, using the social justice research framework. The book also includes several in depth case scenarios that highlight how social justice research has been used to document, monitor and evaluate inequities encountered by underserved populations

The Design of Everyday Things

Author: Norman Don
Publisher: Vahlen
ISBN: 9783800648108
Release Date: 2016-01-11
Genre: Business & Economics

Apple, Audi, Braun oder Samsung machen es vor: Gutes Design ist heute eine kritische Voraussetzung für erfolgreiche Produkte. Dieser Klassiker beschreibt die fundamentalen Prinzipien, um Dinge des täglichen Gebrauchs umzuwandeln in unterhaltsame und zufriedenstellende Produkte. Don Norman fordert ein Zusammenspiel von Mensch und Technologie mit dem Ziel, dass Designer und Produktentwickler die Bedürfnisse, Fähigkeiten und Handlungsweisen der Nutzer in den Vordergrund stellen und Designs an diesen angepasst werden. The Design of Everyday Things ist eine informative und spannende Einführung für Designer, Marketer, Produktentwickler und für alle an gutem Design interessierten Menschen. Zum Autor Don Norman ist emeritierter Professor für Kognitionswissenschaften. Er lehrte an der University of California in San Diego und der Northwest University in Illinois. Mitte der Neunzigerjahre leitete Don Norman die Advanced Technology Group bei Apple. Dort prägte er den Begriff der User Experience, um über die reine Benutzbarkeit hinaus eine ganzheitliche Erfahrung der Anwender im Umgang mit Technik in den Vordergrund zu stellen. Norman ist Mitbegründer der Beratungsfirma Nielsen Norman Group und hat unter anderem Autohersteller von BMW bis Toyota beraten. „Keiner kommt an Don Norman vorbei, wenn es um Fragen zu einem Design geht, das sich am Menschen orientiert.“ Brand Eins 7/2013 „Design ist einer der wichtigsten Wettbewerbsvorteile. Dieses Buch macht Spaß zu lesen und ist von größter Bedeutung.” Tom Peters, Co-Autor von „Auf der Suche nach Spitzenleistungen“

Die 7 Wege zur Effektivit t Snapshots Edition

Author: Stephen R. Covey
Publisher: GABAL Verlag GmbH
ISBN: 9783956236815
Release Date: 2018-03-31
Genre: Self-Help

Auch nach 25 Jahren hat "Die 7 Wege zur Effektivität" von Stephen R. Covey weder an Relevanz noch an Aktualität verloren. Die zentrale Botschaft des Buches: Nicht angelernte Erfolgstechniken, sondern Charakter, Kompetenz und Vertrauen führen zu einem erfüllten und erfolgreichen Leben. Die Snapshots Edition präsentiert übersichtlich und kompakt in anschaulichen Infografiken die wichtigsten Inhalte eines der am meisten gelesenen Businessbücher weltweit. Fokussiert auf Stephen R. Coveys Kernthesen ermöglicht die Snapshots Edition einen modernen Zugang zu einem zeitlosen Businessklassiker.

Das Lean Six Sigma Toolbook

Author: Michael L. George
Publisher: Vahlen
ISBN: 9783800648535
Release Date: 2016-08-12
Genre: Business & Economics

Die Referenz zum Verständnis der Konzepte und Werkzeuge von Lean Six Sigma: Six Sigma ist ein statistisches Qualitätsziel und zugleich ein Instrument des Qualitätsmanagements. Ausgangspunkt dieser auf Effizienz und Qualität ausgerichteten Methode ist die Zieldefinition. Danach wird die Fehlerabweichung von diesem Idealziel ermittelt. Ihr Kernelement ist also die Beschreibung, Messung, Analyse, Verbesserung und Überwachung von Geschäftsprozessen unter anderem mit statistischen Mitteln. Dabei orientieren sich die Ziele an Prozesskennzahlen eines Unternehmens und an den Kundenbedürfnissen. In diesem Buch werden alle wichtigen Werkzeuge zur Anwendung von Lean Six Sigma vorgestellt und systematisch auf ihre Einsatzgebiete hin eingeordnet. Detaillierte Erläuterungen helfen zu verstehen, welches Werkzeug wann, wie und warum einzusetzen ist. Aus dem Inhalt: - Voice of the Customer - Wertstromanalyse und Prozessflussdiagramme - Datenerhebung und Abweichungsanalysen - Fehlerursachen identifizieren und verifizieren - Minderung der Durchlaufzeiten und der nicht-wertschöpfenden Kosten - Komplexität und Komplexitätsanalyse - Auswahl und Pilotierung von Lösungen Michael L. George ist Chairman der George Group, der weltweit führenden Six-Sigma-Beratung. David Rowlands ist Vice President für Six Sigma bei der North American Solution Group, einer Division von Xerox. Marc Pice und John Maxey sind Mitarbeiter der George Group. Die Übersetzung dieses Buchs wurde vom Six-Sigma-Experten Dirk Dose, Partner bei der PPI AG (www.sixsigma.de), und seinem Team vorgenommen. Er verfügt über umfangreiche Beratungspraxis mit Prozessoptimierungsprojekten, bei denen Six Sigma zur Verbesserung von Geschäftsprozessen eingesetzt wurde. Lean Six Sigma ist eine der führenden Techniken zur Maximierung der Prozesseffizienz und zur Steuerung jedes Schritts eines Geschäftsprozesses. Mit dem Lean Six Sigma Toolbook werden Sie entdecken, wie Sie Ihr Unternehmen auf ein neues Niveau der Wettbewerbsfähigkeit heben können.

Denkweisen

Author: Alfred North Whitehead
Publisher:
ISBN: 3518291327
Release Date: 2001
Genre: Philosophy


Survey Interviews

Author: Rainer Schnell
Publisher: VS Verlag für Sozialwissenschaften
ISBN: 3531136143
Release Date: 2011-10-21
Genre: Social Science

Dieses Lehrbuch gibt detaillierte Hinweise für die Durchführung standardisierter Befragungen, vor allem der allgemeinen Bevölkerung. Das Buch behandelt zunächst allgemeine Probleme der Frageformulierung und des Antwortverhaltens. Besondere Aufmerksamkeit wird den praktischen Problemen der Fragebogenkonstruktion und der Durchführung von Pretests gewidmet. Für alle Formen standardisierter Interviews (schriftlich, mündlich, telefonisch, per Internet) werden die jeweiligen Besonderheiten der Befragungsinstrumente, der Stichprobenverfahren und der Durchführung praxisnah dargestellt. Hierbei werden vor allem Nonresponse-Probleme ausführlich diskutiert und Möglichkeiten zu ihrer Vermeidung dargestellt.