observational

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

However, researchers stress that observational studies alone cannot prove cause and effect.

From Science Daily • Jun. 6, 2026

Because the research is observational, it can’t prove that ultraprocessed foods cause dementia and cognitive impairment.

From The Wall Street Journal • Jun. 3, 2026

The analysis included 10 published papers containing data from 12 long term observational studies conducted in the United States, Europe, and Asia.

From Science Daily • May 26, 2026

Such observational research alone doesn’t prove that natural food colors harm health.

From The Wall Street Journal • May 20, 2026

The high point in indigenous Chinese astronomy occurred around 1280, with the work of Kuo Shou-ching, who used an observational baseline of 1,500 years and improved both astronomical instruments and mathematical techniques for computation.

From "Cosmos" by Carl Sagan