The meaning of OBSERVATIONAL is of, relating to, or based on observation—sometimes distinguished from experimental.

Observational research uses data collected during routine clinical care. In observational research in the general population, however, a continuum approach may be more useful than use of a qualitative cut …

Mar 14, 2026 · Researchers simply observe people, measure what’s already occurring, and look for patterns. This makes observational studies fundamentally different from experiments, where …

In fields such as epidemiology, social sciences, psychology and statistics, an observational study draws conclusions without controlling the independent variable due to ethical or practical limitations.

OBSERVATIONAL definition: of, relating to, or founded on observation, especially founded on observation rather than experiment. See examples of observational used in a sentence.

Definition of observational adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Define observational. observational synonyms, observational pronunciation, observational translation, English dictionary definition of observational. n. 1. a. The act of observing: observations of a rare …

In an observational study, the researchers only observe the subjects and do not interfere or try to influence the outcomes. In other words, the researchers do not control the treatments or assign …

Observational means relating to the watching of people or things, especially in order to learn something new.

Factsheet What does the adjective observational mean? There are three meanings listed in OED's entry for the adjective observational. See ‘Meaning & use’ for definitions, usage, and quotation evidence.