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

Yet there is no observational evidence for macroscopic wormholes, nor any compelling theoretical reason to expect them within Einstein’s theory.

From Science Daily • May 22, 2026

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

From The Wall Street Journal • May 21, 2026

But I sometimes imagine that he merely slipped during a courageous and pioneering venture in observational geophysics.

From "Cosmos" by Carl Sagan