unidimensional separation

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Item response theory — In psychometrics, item response theory (IRT) is a body of theory describing the application of mathematical models to data from questionnaires and tests as a basis for measuring abilities, attitudes, or other variables. It is used for statistical … Wikipedia
protein — proteinaceous /proh tee nay sheuhs, tee i nay /, proteinic, proteinous, adj. /proh teen, tee in/, n. 1. Biochem. any of numerous, highly varied organic molecules constituting a large portion of the mass of every life form and necessary in the… … Universalium
Acculturation — is the exchange of cultural features that results when groups come into continuous firsthand contact; the original cultural patterns of either or both groups may be altered, but the groups remain distinct. (Kottak 2007)However, anthropologist… … Wikipedia

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