identifiability.

1. The extent to which a model’s parameters or relevant features can be uniquely determined from the specified information.

2. The extent to which a person or thing can be recognized or linked to its identity from available information.

Use it for

Words that belong together

• parameter identifiability
• identifiability of a model

On the page

The fit looked satisfactory, but parameter identifiability remained unresolved.

The model lacked identifiability because different parameter sets produced the same predicted observations.

Usage notes

Primary category: science / research / methodology. Forms: Usually uncountable. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Writing functions: methodology, measurement, causation, evaluation. Disciplines: research, statistics, scientific reasoning. Commonness: uncommon.