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.

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

From The Wall Street Journal • May 21, 2026

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

From The Wall Street Journal • May 20, 2026

Because the study was observational and relied partly on self reported information, it cannot prove that eating behavior directly caused the different treatment responses.

From Science Daily • May 7, 2026

Because the study was observational, it cannot prove cause and effect.

From Science Daily • May 1, 2026

But he was able to develop on observational grounds something akin to the modern cosmic perspective: What a wonderful and Amazing scheme have we here of the magnificant vastness of the universe ...

From "Cosmos" by Carl Sagan