Determining sample size: balancing power, precision, and practicality

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Oxford University Press,
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A researcher's decision about the sample to draw in a study may have an enormous impact on the results, and it rests on numerous statistical and practical considerations that can be difficult to juggle. Computer programs help, but no single software package exists that allows researchers to determine sample size across all statistical procedures. This pocket guide shows social work students, educators, and researchers how to prevent some of the mistakes that would result from a wrong sample size decision by describing and critiquing four main approaches to determining sample size. In concise, example-rich chapters, Dattalo covers sample-size determination using power analysis, confidence intervals, computer-intensive strategies, and ethical or cost considerations, as well as techniques for advanced and emerging statistical strategies such as structural equation modeling, multilevel analysis, repeated measures MANOVA and repeated measures ANOVA. He also offers strategies for mitigating pressures to increase sample size when doing so may not be feasible. Whether as an introduction to the process for students or as a refresher for experienced researchers, this practical guide is a perfect overview of a crucial but often overlooked step in empirical social work research.
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full_title determining sample size balancing power precision and practicality
author dattalo patrick
grouping_category book
lastUpdate 2017-08-14 05:04:24AM

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author Dattalo, Patrick.
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physical 167 p. : ill. ; 22 cm.
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series Pocket guides to social work research methods
series2 Pocket guides to social work research methods.
series_with_volume Pocket guides to social work research methods
table_of_contents Basic terms and concepts -- Statistical power analysis -- Confidence intervals: measures of precision -- Computer-intensive methods -- Additional considerations, recommendations, and conclusions -- Worked examples.
target_audience Other
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title Determining sample size balancing power, precision, and practicality
title_display Determining sample size balancing power, precision, and practicality
title_full Determining sample size [electronic resource] : balancing power, precision, and practicality / Patrick Dattalo
title_short Determining sample size
title_sort determining sample size balancing power, precision, and practicality
title_sub balancing power, precision, and practicality