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 inferences from a sample to a population where the independent variable is not under the control of …

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

Definition of observational adjective from the Oxford Advanced Learner's Dictionary. connected with or based on the activity of watching somebody/something carefully for a period of time, especially to …

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

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.

Observational definition: Of or based on observation rather than experimentation.

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