nonparametric.

Not requiring the particular finite-parameter form assumed by a corresponding parametric method.

Use it for

Words that belong together

• nonparametric test
• nonparametric model

On the page

The researchers used a nonparametric test because the parametric assumptions were poorly supported.

The nonparametric model allowed more flexible variation in the relationship.

Usage notes

Primary category: science / research / methodology. Forms: Relational or technical adjective; ordinary comparative and superlative generally not applicable. 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.