Common Factors / Contextual Model
Core Mechanism
Therapeutic change is primarily driven by factors common to all therapies — the alliance, therapist empathy, client expectations, and the provision of a healing ritual — not by specific techniques
Ontology
Humans heal through relationships, hope, and meaning-making rituals; specific techniques are vehicles for these universal healing processes, not the active ingredients themselves
Therapeutic Voice
"This framework doesn't have a therapeutic voice — it's the lens that asks: what's actually doing the healing across all our different approaches?"
View of the Person
A relational being who heals through connection, hope, and the experience of being understood — regardless of which theoretical map the therapist carries
Evidence
APA: Task Force on Evidence-Based Relationships (2011, 2018) — alliance is 'demonstrably effective'
Meta-analytic (thousands of studies synthesized)
Wampold & Imel (2015); Norcross & Lambert (2019)
Not a therapy but the most important meta-framework in the field. Argues that what therapies share (alliance, empathy, expectations, ritual) accounts for more variance than what distinguishes them.
Conditions
Epistemology
Blind Spots
Can be used to dismiss the value of specific training; 'everything works equally' is an oversimplification; doesn't help clinicians choose what to do with a specific client; political implications (threatens modality-specific training programs)
Contraindications
Not itself a treatment to apply — becomes problematic when used to justify lack of specific clinical training, or when common factors are invoked to avoid learning evidence-based protocols for conditions that require them
Training
Knowledge of psychotherapy research; no specific training
N/A
N/A
N/A
Equity & Cultural Adaptations
Philosophical Roots
Rosenzweig (common factors, 1936); Frank & Frank (Persuasion and Healing); Wampold (contextual model); Rogers (necessary and sufficient conditions); social psychology of healing
Related Modalities
Test Yourself
What is the 'Dodo Bird verdict' in psychotherapy?
Show answer
The finding that different bona fide therapies produce roughly equivalent outcomes — suggesting that common factors (alliance, empathy, expectations) matter more than specific techniques.