People / Integrative, common factors and outcome research
Saul Rosenzweig
In a 1936 paper, Rosenzweig asked whether different psychotherapies might share unrecognised factors. The question remains a subject of research and debate.
At a glance
Lived 1907 to 2004. American. Psychologist & Psychotherapy Theorist.
Active 1932 to 2004. Landmark year 1936. Clinical era: 1919 to 1945, ego, object and interpersonal shifts.
Lineage: Integrative, common factors and outcome research. Roles: Clinical theorist; Process and outcome researcher.
Associated modalities: Common Factors and Contextual Model; Integrative and Pluralistic Psychotherapy; Psychotherapy Process and Outcome Research.
Psychologist who proposed that different psychotherapies may share important factors.
Review status: Educational draft, subject review pending. Source status: source checks not documented for this draft. Dates, sources and clinical statements require independent verification and specialist review.
Clinical overview
Saul Rosenzweig was an American psychologist. He received his doctorate from Harvard University in 1932, worked at Worcester State Hospital and joined the Washington University faculty in 1948.
His 1936 paper used the Dodo's verdict from Lewis Carroll as an image for the possibility that different psychotherapies might succeed. He proposed that factors not always acknowledged by therapists might contribute across approaches.
Historical and clinical context
Rosenzweig questioned whether success attributed to a therapy necessarily verified its stated theory. He considered the possible influence of implicit aspects of the relationship, the therapist's personality and a consistent explanatory framework.
For the purpose of his argument, Rosenzweig assumed that competently used approaches were equally successful. He explicitly acknowledged that this assumption was not well founded and that treatments might differ in suitability. His paper was a theoretical argument, not a comparative trial.
Core therapeutic contributions
The Common Factors Hypothesis and 'Dodo Bird Verdict' (1936). Asked whether unrecognised factors shared by different approaches could help explain their reported successes. The paper did not establish that all therapies have equal effects.
Coherent Rationale and Systemic Personality Reorganisation. Suggested that a consistent therapeutic explanation and interdependence among aspects of personality might help explain why different methods can be useful. These are proposals in his 1936 paper, not established mechanisms for every person.
Experimental Psychodynamics and Idiodynamics. Created the Rosenzweig Picture-Frustration Study (assessing extrapunitive, intropunitive, and impunitive responses to frustration) and formulated 'idiodynamics' to study the unique configuration of the individual person.
In the consulting room
Therapeutic stance. His argument invites attention to aspects of therapy that are shared or not fully captured by an approach’s stated theory.
Signature practices. Considering the therapeutic relationship and the person’s understanding of the work; Discussing whether an explanation makes sense to the person; Evaluating the evidence for a particular approach, population and outcome
Common misreadings. Treating the Dodo image as proof that every therapy is equally effective; Assuming that the existence of shared factors rules out effects of specific techniques
Landmark clinical works
1934, Types of Reaction to Frustration: A Heuristic Classification (paper). Introduced frustration theory and the classification of extrapunitive, intropunitive, and impunitive defensive reactions.
1936, Some Implicit Common Factors in Diverse Methods of Psychotherapy (paper). A theoretical paper proposing that different psychotherapies may have implicit factors in common; it used a Dodo epigraph while acknowledging uncertainty about equal success.
1945, The Picture-Association Method and Its Application in a Study of Reactions to Frustration (manual). Established the Rosenzweig Picture-Frustration Study, widely used internationally in personality and clinical assessment.
1992, Freud, Jung, and Hall the King-Maker: The Historic Expedition to America (1909) (book). Historical study of the 1909 Clark University visit by Freud and Jung.
Clinical critiques and limitations
The 1936 paper was a theoretical argument, not a comparative treatment study. It acknowledged that particular methods might be better suited to some cases.
A 2016 review of comparative trials for adult depression found that many individual studies were too small to detect clinically relevant differences. This limitation does not establish that treatments are equivalent or that one factor explains most outcomes.
Clinical genealogy
Influences and mentors: Henry A. Murray; Gordon Allport; Edwin G. Boring; Sigmund Freud; David Shakow.
Collaborators: David Shakow; Henry A. Murray.
Students and successors: Jerome David Frank; Lester Luborsky; Bruce E. Wampold; John Norcross; Mick Cooper; Sol Garfield.
Sources and inspection notes
Supports: A dated check of its relevance to this profile is not recorded for this draft
Duncan, B. L. (2002). Founder of common factors: A conversation with Saul Rosenzweig. Journal of Psychotherapy Integration, 12(1), 10-31.
Supports: A dated check of its relevance to this profile is not recorded for this draft
Wampold, B. E., & Imel, Z. E. (2015). The Great Psychotherapy Debate: The Evidence for What Makes Psychotherapy Work (2nd ed.). Routledge.
Supports: A dated check of its relevance to this profile is not recorded for this draft
Bernard Becker Medical Library, Washington University in St. Louis. Saul Rosenzweig, vertical file.
Supports: A dated check of its relevance to this profile is not recorded for this draft
Supports: A dated check of its relevance to this profile is not recorded for this draft