In this scientific and managed-care era, one could expect that the current clinical practices of mental health professionals would be entirely data based and outcome substantiated. Of course, this is still far from reality, for many reasons, not the least of which are the inherent difficulties in rigorously, reliably, and validly evaluating those practices. But numerous practitioners nonetheless feel that their own unique techniques are unequivocally efficacious, and they act as if they have achieved the psychotherapeutic Holy Grail. Are they deceiving themselves, or others?