Whether in the laboratory or while doing fieldwork, all researchers face an important challenge - designing research that will have sufficient sensitivity to detect those effects it purports to investigate. Sample size, validity, and sensitivity, experimental error, subject variability and the type of statistical analysis all influence the sensitivity of a research design. In this volume Lipsey examines the concept of design sensitivity and explains statistical power and the elements that determine it. Through careful explanations and selection of examples he explores a variety of topics: factors that degrade design sensitivity, effect size parameters and approaches to assessing it, how to estimate statistical power for various statistical tests, and the special problems statistical power poses for treatment effectiveness research. This book is a vital resource for evaluators, methodologists, statisticians, psychologists, public health professionals and educators.
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All researchers face an important challenge - designing research that will have sufficient sensitivity to detect those effects it purports to investigate. Through careful explanations and selection of examples, this title examines the concept of design sensitivity and explains statistical power and the elements that determine it.
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PART ONE: STATISTICAL POWER IN TREATMENT EFFECTIVENESS RESEARCH
Treatment Effectiveness Research and Design Sensitivity
The Statistical Power Framework
Effect Size
The Problematic Parameter
How to Estimate Statistical Power
PART TWO: USEFUL APPROACHES AND TECHNIQUES
Dependent Measures
Design, Sample Size, and Alpha
The Independent Variable and the Role of Theory
Putting It All Together
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"A very useful book to social science researchers and a valuable reference for practicing statisticians. I found many good suggestions in it. This book is a thought-provoking essay on statistical power analysis. It is worthwhile reading."
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Produktdetaljer
ISBN
9780803930636
Publisert
1990-02-05
Utgiver
Vendor
SAGE Publications Inc
Vekt
310 gr
Høyde
215 mm
Bredde
139 mm
Aldersnivå
U, 05
Språk
Product language
Engelsk
Format
Product format
Heftet
Antall sider
208
Forfatter