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)


<b>Sample Size</b>

Sample Size



With smaller <b>sample sizes</b>

With smaller sample sizes

A <b>Sample Size</b> of One

A Sample Size of One

How to Calculate <b>Sample Size</b>

How to Calculate Sample Size

and <b>sample size</b> is done to

and sample size is done to

set a <b>sample size</b> level of

set a sample size level of

Definiting a <b>sample size</b> for

Definiting a sample size for

Symptoms and diagnosis



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Last update: September 2014