FIND

researchers

DISCOVER

relevant articles

PROMOTE

your research
now for free  

Experts in Sample Size

The number of units (persons, animals, patients, specified circumstances, etc.) in a population to be studied. The sample size should be big enough to have a high likelihood of detecting a true difference between two groups. (From Wassertheil-Smoller, Biostatistics and Epidemiology, 1990, p95)

Flash Player Required

Copyright © 2011 Elsevier Inc. All rights reserved.