AUC (Area Under the ROC Curve)
Definition
The standard metric for risk-instrument predictive accuracy: a value of 0.50 equals chance; 0.70 is typically described as moderate accuracy; 1.00 is perfect discrimination. Most forensic risk instruments achieve AUC values between 0.65 and 0.75 for violence prediction.
Related terms
- BSA 2023 § 39
- Section 39 of the Bharatiya Sakshya Adhiniyam 2023, the provision governing expert opinion evidence in Indian courts. Replaced Indian Evidence Act 1872...
- HCR-20 V3
- The Historical Clinical Risk Management-20, Version 3 (2013): 20-item SPJ instrument covering Historical, Clinical, and Risk Management domains, producing a Low/Moderate/High risk...
- SAPROF
- Structured Assessment of Protective Factors for Violence Risk (2009): 17-item SPJ instrument covering internal, motivational, and external protective factors; used alongside HCR-20...
- SARA
- Spousal Assault Risk Assessment Guide (1994, updated 2008): 20-item SPJ tool specifically developed for intimate partner violence risk assessment, producing Low/Moderate/High categorical...
- Structured Professional Judgement (SPJ)
- A risk-assessment paradigm in which a clinician codes empirically supported risk factors on a defined scale and then makes a professional judgement...
- VRAG-R
- Violence Risk Appraisal Guide-Revised (2015): 12-item fully actuarial instrument whose score places an individual in one of nine bins, each associated with...
Explained in
- Structured Risk Assessment: HCR-20 V3, VRAG-R and SAPROFThe standard metric for risk-instrument predictive accuracy: a value of 0.50 equals chance; 0.70 is typically described as moderate accuracy; 1.00 is perfect d...