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Determining Sample Size: Balancing Power, Precision, and Practicality

Patrick Dattalo

Published in print:
2008
Published Online:
January 2009
ISBN:
9780195315493
eISBN:
9780199865475
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195315493.001.0001
Subject:
Social Work, Research and Evaluation

Sample size determination is an important and often difficult step in planning an empirical study. From a statistical perspective, sample size depends on the following factors: type of analysis to be ... More


The Dissertation: From Beginning to End

Peter Lyons and Howard J. Doueck

Published in print:
2009
Published Online:
February 2010
ISBN:
9780195373912
eISBN:
9780199865604
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195373912.001.0001
Subject:
Social Work, Research and Evaluation

This book is intended to be read at any stage in the dissertation process, but will be particularly useful in the early stages of preparation for a social work dissertation, and as a reference ... More


Sampling and Measurement

Peter Lyons and Howard J. Doueck

in The Dissertation: From Beginning to End

Published in print:
2009
Published Online:
February 2010
ISBN:
9780195373912
eISBN:
9780199865604
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195373912.003.0005
Subject:
Social Work, Research and Evaluation

This chapter examines participant selection, sampling design, sample size and sampling error; as well as the importance of statistical power, effect size, confidence levels, and confidence intervals. ... More


Down to detail

Marian Stamp Dawkins

in Observing Animal Behaviour: design and analysis of quantitative data

Published in print:
2007
Published Online:
January 2008
ISBN:
9780198569350
eISBN:
9780191717512
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198569350.003.0006
Subject:
Biology, Animal Biology

An important part of the planning of any project is the construction of a detailed protocol or research plan. This should be detailed enough that someone else could read it and see exactly what was ... More


Single-Scale Sampling

Thomas J. Stohlgren

in Measuring Plant Diversity: Lessons from the Field

Published in print:
2006
Published Online:
September 2007
ISBN:
9780195172331
eISBN:
9780199790395
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195172331.003.0004
Subject:
Biology, Plant Sciences and Forestry

This chapter provides examples and discusses several single-scale sampling techniques for measuring plant diversity. Common techniques include: searching, where a species list is obtained for a site, ... More


Study Design

Neil Abell, David W. Springer, and Akihito Kamata

in Developing and Validating Rapid Assessment Instruments

Published in print:
2009
Published Online:
September 2009
ISBN:
9780195333367
eISBN:
9780199864300
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195333367.003.0003
Subject:
Social Work, Research and Evaluation

This chapter provides an overview of the design of the psychometric study. First, sampling issues are addressed, including who should be recruited and in what numbers, with guidance on anticipating ... More


Computer-Intensive Methods

Patrick Dattalo

in Determining Sample Size: Balancing Power, Precision, and Practicality

Published in print:
2008
Published Online:
January 2009
ISBN:
9780195315493
eISBN:
9780199865475
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195315493.003.0004
Subject:
Social Work, Research and Evaluation

This chapter provides a brief description of the rationale and limitations of CISs; presents an example of how CISs can be used to determine sample size; and identifies additional CISs related ... More


The use of value of information methods in the design and evaluation of clinical trials

Andrew R. Willan

in Economic Evaluation in Child Health

Published in print:
2009
Published Online:
February 2010
ISBN:
9780199547494
eISBN:
9780191720055
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199547494.003.05
Subject:
Public Health and Epidemiology, Public Health, Epidemiology

This chapter illustrates the use of value of information methods in determining sample size for pediatric clinical trials and for summarizing trial results, underscoring the particular advantage ... More


Basic Terms and Concepts

Patrick Dattalo

in Determining Sample Size: Balancing Power, Precision, and Practicality

Published in print:
2008
Published Online:
January 2009
ISBN:
9780195315493
eISBN:
9780199865475
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195315493.003.0001
Subject:
Social Work, Research and Evaluation

This chapter defines important terms and concepts. It a familiarity with issues related to the appropriate application of each statistical procedure in terms of assumptions and purpose. The chapter ... More


Sample size and power estimates

Curtis L. Meinert and Susan Tonascia

in Clinical Trials: Design, Conduct and Analysis

Published in print:
1986
Published Online:
September 2009
ISBN:
9780195035681
eISBN:
9780199864478
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195035681.003.0009
Subject:
Public Health and Epidemiology, Public Health, Epidemiology

This chapter discusses the role of sample size and power estimates in planning a trial. It details the methods for making such calculations in trials involving fixed sample designs.


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