Methoden vergelijken

	Schaal voor Patiënt-Therapeut Overeenstemming	Outcome Rating Scale
Vakgebied	Psychotherapieonderzoek	Psychotherapieonderzoek
Familie	Process / pipeline	Process / pipeline
Jaar van ontstaan	1965	2003
Grondlegger	Edward H. Nash, Robert Hoehn-Saric	Scott D. Miller, Barry L. Duncan
Type	Client/Therapist-rated	Client-rated
Oorspronkelijke bron	Nash, E. H., Hoehn-Saric, R., Battle, C. C., Stone, A. R., Imber, S. D., & Frank, J. D. (1965). Systemic preparation of patients for psychotherapy: Effects on therapy behavior and outcome. Journal of Psychiatric Research, 2(4), 267–281.	Miller, S. D., Duncan, B. L., Brown, J., Sparks, J. A., & Claud, D. A. (2003). The Outcome Rating Scale: Preliminary validity studies of a brief, visual, general measure of session effectiveness. Journal of Brief Therapy, 5(2), 23–33.
Aliassen	PTAS, Goal Agreement Scale	ORS, ORS-4
Verwant	4	4
Samenvatting	The Patient-Therapist Agreement Scale (PTAS) measures the degree to which client and therapist agree on therapy goals, treatment focus, and expected treatment duration—a core component of the therapeutic alliance. Developed by Nash and colleagues in their foundational study of psychotherapy preparation, the PTAS operationalizes the principle that shared understanding of 'what we're working on and how long it will take' predicts engagement and outcome. It is used primarily in research and training to assess goal alignment and identify mismatches that may undermine treatment.	The Outcome Rating Scale (ORS) is a 4-item ultra-brief symptom and wellbeing measure designed to track subjective improvement across individual, interpersonal, social, and overall functioning dimensions. Developed by Miller and Duncan, the ORS uses visual analog scales to enable session-by-session outcome monitoring in clinical practice and research. It is paired with the Session Rating Scale (SRS) in measurement-based care protocols to simultaneously track what clients feel and how they are functioning.