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self-selection |
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self-selection a circumstance in which the allocation of units of a population to one or other of two groups which are to be compared is done by the units, e.g. the sick animals in one group, the not-sick in the other. See also volunteer sample. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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