SummaryA GROUP situational performance test is defined as a test measuring the performance of an ongoing group as a unit. This article summarizes some of the extensive research conducted on this type of test in military organizations. Group situational tests can be used in many ways: (1) as training devices, (2) to establish leadership criteria, (3) to determine training requirements, (4) to evaluate training and work procedures, and (5) to evaluate organizational structures. Problems connected with the construction, administration and scoring of these tests are discussed and some of the possibilities of the use of group situational performance tests in industrial situations are indicated.