Sample Size
| Definition: |
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) |
| Notes: |
NIM with specific population or circumstances sampled (IM); no qualif; not restricted to epidemiology |
Sample Size Definitions and Terms
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