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other subjects > mathematics > statistics > sampling > internal validity

Preferred term

internal validity  

Definition

  • Internal validity refers to the accuracy of statements made about the causal relationship between two variables, namely, the manipulated (treatment or independent) variable and the measured variable (dependent). Internal validity claims are not based on the labels a researcher attaches to variables or how they are described but, rather, to the procedures and operations used to conduct a research study, including the choice of design and measurement of variables. [Source: Encyclopedia of Research Design; Internal Validity]

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https://concepts.sagepub.com/social-science/concept/internal_validity

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