The validity subcriterion tests whether measure specifications are consistent with the measure intent and captures the most inclusive target population. There are two main types of validity, measure validity and data element validity. Measure validity is when the measure accurately represents the evaluated concept and achieves the intended purpose (to measure quality). Data element validity is the extent to which the data element or code represent the information. National Quality Forum. (2021). Measure evaluation criteria and guidance for evaluating measures for endorsement. https://www.qualityforum.org/WorkArea/linkit.aspx?LinkIdentifier=id&ItemID=88439 See measure validity and data element validity.