Typically used in screening, it allows the PDD examiner to determine which of several areas should be followed up with further questioning. It is somewhat uncommon to make decisions of truthfulness or deception in these types of tests because of the known adverse effects on decision accuracy. Such decisions are generally made after subsequent testing on the isolated issue in a single-issue test format. Among the more common multiple-issue test formats are the Law Enforcement Pre-employment Test and the Test for Espionage and Sabotage. See: Barland, Honts, & Barger (1989).