Home > Term: internal validity
internal validity
Selection and comparison of index and comparison groups in such a manner that, apart from sampling error, the observed differences between these groups with respect to dependent variables under study may be attributed only to the hypothesized effect under investigation.
- Kalbos dalis: noun
- Pramonės šaka / sritis: Biology; Chemistry
- Category: Toxicology
- Company: National Library of Medicine
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- Walter Lane
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