validity measures

Validity measures refer to how accurately a test or assessment measures what it intends to measure. They ensure that the results are meaningful and relevant to the specific idea or skill being evaluated. For example, if a math test accurately reflects a student's mathematical abilities, it has high validity. There are different types, such as content validity (covers all relevant topics), construct validity (measures the theoretical concept), and criterion validity (correlates well with other meaningful measures). Validity is essential for trusting the conclusions drawn from assessment results.