方法对比

	Standardized Clinical Cutoff	Single-System Design
领域	Social Work	Social Work
方法族	Process / pipeline	Process / pipeline
起源年份	1991	2009
提出者	Neil S. Jacobson & Paula Truax	Martin Bloom, Joel Fischer & John G. Orme (codification in social work)
类型	Method for judging whether individual change on a standardized measure is reliable and clinically meaningful	Time-series design for evaluating intervention with a single client system
开创性文献	Jacobson, N. S., & Truax, P. (1991). Clinical significance: A statistical approach to defining meaningful change in psychotherapy research. Journal of Consulting and Clinical Psychology, 59(1), 12–19.	Bloom, M., Fischer, J., & Orme, J. G. (2009). Evaluating Practice: Guidelines for the Accountable Professional (6th ed.). Pearson/Allyn & Bacon. ISBN: 9780205458066
别名	Clinical Cutoff Score, Clinical Significance Method, Reliable Change Index, Jacobson-Truax Method	Single-Subject Design, Single-Case Design, N-of-1 Design, Single-System Evaluation
相关	3	4
摘要	The standardized clinical cutoff approach, developed by Jacobson and Truax, judges whether an individual client's change on a standardized measure is both statistically reliable and clinically meaningful. It pairs a Reliable Change Index — which asks whether a pre-to-post change is larger than the measurement error of the instrument — with a cutoff score that marks the boundary between the dysfunctional and functional (normal) populations. A client who moves reliably across that cutoff is counted as recovered, giving practice and research a defensible, individual-level definition of meaningful improvement.	A single-system design is a time-series approach to evaluating practice in which a single client system — an individual, family, group, or organization — is measured repeatedly on a clearly defined target before and during (and sometimes after) an intervention. By tracking the same system over time rather than comparing a treatment group to a control group, it lets a practitioner judge whether their own intervention is associated with change in the people they actually serve. It is the methodological backbone of the 'accountable professional' tradition codified by Bloom, Fischer, and Orme.