OBSERVATIONAL meaning: 1. involving watching someone or something carefully and closely, in order to learn something: 2…. Learn more.

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 …

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

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: …

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 …

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

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 …

Dec 21, 2025 · Observational studies are conducted in a natural environment where the purpose is to observe outcomes without enacting change. They can be either qualitative or quantitative.