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 …

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 …

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 …

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

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 …