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Threats to Internal & External Validity

Threats to Internal & External Validity

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3 Robert S Michael Internal & External Validity-5 Variables & Internal Validity Extraneous variables are variables that may compete with the independent variable in explaining the outcome of a study. A confounding variable is an extraneous variable that does indeed influence the dependent variable. A confounding variable systematically varies or ...

  Internal, Threats, External, Validity, Threats to internal amp external validity

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