observational

[ ob-zur-vey-shuh-nl ]

adjective

1. of, relating to, or founded on observation, especially founded on observation rather than experiment.

Other Words From

• obser·vation·al·ly adverb
• nonob·ser·vation·al adjective
• preob·ser·vation·al adjective

Word History and Origins

Origin of observational¹

First recorded in 1825–35; observation + -al ¹

Example Sentences

For the study, Hewlett and colleagues use observational and ethnographic data to examine nine different modes of cultural transmission, meaning from whom and how children learn, in hunter-gatherer societies.

From Science Daily

Conventional approaches to storm forecasting involve large numerical simulations run on supercomputers incorporating mountains of observational data, and they still often result in inaccurate or incomplete predictions.

From Science Daily

The research builds on earlier observational studies but is the first to use a randomized controlled trial to provide concrete information about the benefits to children of spending time in nature.

From Science Daily

Multiple studies have shown that visual arts training improves observational skills, communication and empathy among both medical students and residents in ophthalmology, nuclear medicine, radiology, and dermatology.

From Science Daily

Even if they did the research linking cannabis use in pregnancy to child outcomes is observational in nature — meaning it’s not possible to determine a direct casual relationship.

From Salon

Related Words

• experimental
• factual