The standard test battery developed by Rapaport, Gill, and Schafer at the Menninger Foundation constituted the most important research instrument (apart from clinical interviews) of the Foundation's psychotherapy research project. The battery's influence on clinical diagnosis and on research in personality assessment and change has been tremendous. In the hands of highly trained and skilled psychologists, the battery, constructed chiefly around projective tests, has been invaluable for diagnosing difficult cases. The complexity of interpreting it, however, and the many dimensions along which...