interventional.

Relating to deliberate intervention in the conditions or treatment being studied.

Use it for

Words that belong together

• interventional study
• interventional research

On the page

The interventional study changed the training schedule and recorded the resulting outcomes.

Interventional research required safeguards that differed from those used for existing anonymous records.

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: moderately common.