Nigerian Postgraduate Medical Journal

REVIEW ARTICLE
Year
: 2020  |  Volume : 27  |  Issue : 2  |  Page : 67--75

Sample size estimation for health and social science researchers: The principles and considerations for different study designs


Oladimeji Akeem Bolarinwa 
 Department of Epidemiology and Community Health, Faculty of Clinical Sciences, University of Ilorin, Ilorin, Nigeria

Correspondence Address:
Dr. Oladimeji Akeem Bolarinwa
Department of Epidemiology and Community Health, Faculty of Clinical Sciences, University of Ilorin, Ilorin
Nigeria

Sample size is one of the important considerations at the planning phase of a research proposal, but researchers are often faced with challenges of estimating valid sample size. Many researchers frequently use inadequate sample size and this invariably introduces errors into the final findings. Many reviews on sample size estimation have focused more on specific study designs which often present technical equations and formula that are boring to statistically naïve health researchers. Therefore, this compendium reviews all the common sample size estimation formula in social science and health research with the aim of providing basic guidelines and principles to achieve valid sample size estimation. The simplification of the sample size formula and detailed explanation in this review will demystify the difficulties many students as well as some researchers have with statistical formulae for sample size estimation.


How to cite this article:
Bolarinwa OA. Sample size estimation for health and social science researchers: The principles and considerations for different study designs.Niger Postgrad Med J 2020;27:67-75


How to cite this URL:
Bolarinwa OA. Sample size estimation for health and social science researchers: The principles and considerations for different study designs. Niger Postgrad Med J [serial online] 2020 [cited 2020 Jun 5 ];27:67-75
Available from: http://www.npmj.org/article.asp?issn=1117-1936;year=2020;volume=27;issue=2;spage=67;epage=75;aulast=Bolarinwa;type=0