Research Methods I Flashcards

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Flashcards covering criterion validity, coefficient of determination (R2), and their interpretations in research methods.

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5 Terms

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Criterion Validity

Correlation between test scores and a criterion (correlation X-Y).

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Validity Coefficient

Correlation between test scores and criterion (correlation X-Y).

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Coefficient of Determination (R2)

Percentage of variance of Y associated with or explained by X.

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R2 = 1

100% of the variance in Y is explained by the variance in X; i.e. Increase from 10 to 20 = entirely explained by increase in X.

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R2 < 1

Less than 100% of the variance in Y is explained by the variance in X; i.e. Increase in y = explained only partly by the variability in X.