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

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 …

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

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 …

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, …

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

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

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 …

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 …

Aug 11, 2025 · In an observational study, researchers will attempt to look at a treatment, risk factor, test, or some other type of intervention without changing who is exposed to it.