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Chapter-11 Small Size

BOOK TITLE: Biostatistics

Author
1. Prabhakara GN
ISBN
9788180616594
DOI
10.5005/jp/books/10102_11
Edition
1/e
Publishing Year
2006
Pages
10
Author Affiliations
1. SDM College of Medical Sciences and Hospital, Manjushree Nagar, Sattur, Dharwad, Karnataka, India, Medical Arts Photography and Modelling, SDM College of Medical Sciences and Hospital, Manjushree Nagara, Sattur, Dharwad, Karnataka, Karnataka Institute of Medical Sciences, Hubli, India, SDM Medical College, Dharwad, Karnataka, India
Chapter keywords

Abstract

In this chapter unique and common question how large should our sample be? is answered. Links of disease transmission is detailed with illustration. Factors influencing sample size are described. Formulae for sample size in case (a) when prevalence/population rate known (b) to determine the estimate of quantitative data (c) when control groups are possible and (d) in sociological studies are illustrated. Table of error/accuracy and relation of confidence interval to accuracy are illustrated. With relevant questions and answers, author makes the reader to study and learn from selected problems, collected from medical college and hospital studies. Chapter is concluded with glossary of the chapter.

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