This volume is the seventh in an ongoing series addressed to the in psychological assessment. The overall aim of the developing frontiers series is to bring critical examinations of recent advances in assessment to clinicians, researchers, university teachers, and graduate students, and thus to help them to keep abreast of an important and rapidly expanding field of psychology. This aim of course cannot be fulfilled in a single volume, but it can be met, at least to a large degree, in a continuing series. In this context we encourage those readers who are pleased with the offerings in this...