In the 1990's all factors of therapy are changing. The way of financing therapy is changing, there are new types of clientele, there are striking differences in ideology and the training of therapists is becoming a new kind of enterprise.
The author traces the evolution of psychodynamic theory over the past fifty years and demonstrates how various individuals and schools of thought have contributed to increasing conceptual clarity despite significant continuing differences. Along with these theoretical advances, there have been important changes in analytically-oriented therapeutic techniques. Nevertheless, underneath the wide variance in methodology and in their explanatory terminology, certain common denominators are discernible that explain why such diverse theoretical approaches are able to achieve comparable degrees of therapeutic success. These factors are demonstrable in non-analytic therapies also.