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 researchers emphasized that this was an observational study, meaning it cannot prove that strength training directly caused the reductions in mortality risk.

From Science Daily • Jun. 12, 2026

The researchers caution that the study was observational, meaning it can identify associations but cannot prove that nitrate directly causes dementia.

From Science Daily • Jun. 8, 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

This picture of a universe that started off very hot and cooled as it expanded is in agreement with all the observational evidence that we have today.

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