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	Kwestionariusz Czynników Wspólnych	Forma pomocnych aspektów terapii
Dziedzina	Badania nad psychoterapią	Badania nad psychoterapią
Rodzina	Process / pipeline	Process / pipeline
Rok powstania	1992	1988
Twórca	Michael J. Lambert, Bruce E. Wampold	Sara P. Llewellyn; Robert Elliott
Typ	Client-rated	Client-rated
Źródło pierwotne	Lambert, M. J., & Barley, D. E. (2001). Research summary on the therapeutic relationship and psychotherapy outcome. Psychotherapy: Theory, Research, Practice, Training, 38(4), 357–361.	Llewellyn, S. P., Foo, S., & Stam, H. J. (1988). Assessing psychotherapy outcome: Clients' perspectives. Canadian Journal of Counselling, 22(2), 191–206.
Inne nazwy	CFQ, Therapeutic Factors Scale	HAT, Helpful Aspects Questionnaire
Pokrewne	4	4
Podsumowanie	The Common Factors Questionnaire (CFQ) is a structured client-report measure that quantifies the client's perception of therapeutic factors deemed common to effective psychotherapy across all modalities—including alliance, therapist empathy, client agency, goal clarity, and emotional expression. Based on Lambert's contextual model and Wampold's therapeutic relationship framework, the CFQ operationalizes the empirical finding that 70% or more of therapy outcome variance is attributable to common factors (relationship, expectancy, therapeutic environment) rather than specific technique. It is used in research to examine mechanisms of change and to compare common factors across therapy types.	The Helpful Aspects of Therapy (HAT) form is a semi-structured client feedback instrument designed to capture the client's perception of what was most beneficial or helpful in a therapy session or course of treatment. Developed by Llewellyn and refined by Elliott, the HAT combines open-ended narrative response with structured rating scales, enabling rich qualitative insight alongside quantitative comparison. It is used in qualitative outcome research and clinical feedback systems to understand mechanisms of change from the client's perspective.