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.

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

These studies were observational, which differs from research done on drugs to study intended effects.

From The Wall Street Journal • May 21, 2026

Because the study was observational and conducted at a single medical center, it cannot prove that low vitamin D directly caused the increase in pain.

From Science Daily • May 20, 2026

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

From The Wall Street Journal • May 20, 2026

It is striking that the observational search for extraterrestrial life began in the same generation as the invention of the telescope, and with the greatest theoretician of the age.

From "Cosmos" by Carl Sagan