Reference Data
Definition
Data used to develop or test a statistical model. Their role, sampling design, relevance and limitations must be stated; do not describe all FRStat reference scores as an LR feature-frequency denominator.
Related terms
- 2009 NAS Report
- The National Research Council report Strengthening Forensic Science in the United States, which called for stronger empirical foundations and uncertainty assessment and...
- Categorical Identification
- A traditional source opinion identifying an impression with a named source. It should not be expressed as infallibility or exclusion of every...
- ENFSI Evaluative Reporting Framework
- Guidance for assessing and reporting the relative support of findings for competing propositions. It is not a single fingerprint statistical model.
- FRStat
- A score-based likelihood ratio system for fingerprint evidence developed at NIST, converting AFIS similarity scores to LRs using a reference database of...
- Likelihood Ratio (LR)
- The statistical measure used to express the strength of a DNA identification: the probability of the observed DNA evidence given the identification...
- NIST ELFT-EFS
- An evaluation of latent-search technologies, including effects of examiner-marked features on automated retrieval accuracy; distinct from an examiner black-box study.
- Ulery Et Al. 2011
- A controlled human-examiner study reporting an approximately 0.1% false-positive rate under its conditions and definitions; not a universal casework error probability.
- Verbal Scale
- A standardised mapping from likelihood ratio values to descriptive phrases used in court-facing reports. The ENFSI scale runs from 'weak support' through...