A measurement that accurately reflects the meaning of a variable is said to have a form of validity called what?

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Construct validity refers to the degree to which a measurement accurately reflects the underlying construct or concept being measured. This requires that the measurement captures all aspects and dimensions of the construct, and that it is not confounded with other factors or constructs. It is a form of validity that is critical for ensuring the accuracy and meaningfulness of research findings. External validity refers to the generalizability of findings to other settings or populations, while internal validity refers to the degree to which the study design and methods control for alternative explanations of the results. Convergent validity refers to the degree to which different measures of the same construct are related or converge.

A Measurement That Accurately Reflects the Meaning of a Variable