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

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

From The Wall Street Journal • May 21, 2026

To explore the connection, researchers carried out a prospective observational study at Fayoum University Hospital in Egypt between September 2024 and April 2025.

From Science Daily • May 20, 2026

His result, however, suggested that there would be no observational consequences that could be detected by the telescopes of the day.

From "A Brief History of Time: And Other Essays" by Stephen Hawking