August 23, 2005 PDF 119k 8 pages Download Overview Concurrent with the need to verify the validity of an instrument is the need to evaluate its efficacy in different situations. It is for this purpose that local validity studies are conducted. Admission tests, for example, are often validated for each individual program using the test. Related Items Assessing Validity by Combining Examinees Across Programs GMAT™ Validity Study Summary Report for 1997 to 2004 When Are Grades No Longer Valid? A Look at the Effect of Time on the Usefulness of Previous Grades