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Showing results for effectiveness. Search instead for effective outcomes.
Definitions

effectiveness

[ih-fek-tiv-nis, ee-fek‐] / ɪˈfɛk tɪv nɪs, iˈfɛk‐ /




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 logs are now being monitored to assess their effectiveness in restoring the peatland.

From BBC • May 15, 2026

Although we had decades of clinical data validating its effectiveness, it was an observation from a longitudinal study of healthy nurses in the 1980s that spurred the largest bump in hormone usage.

From MarketWatch • May 12, 2026

This targeted delivery may improve effectiveness while limiting side effects linked to widespread drug exposure.

From Science Daily • May 7, 2026

One dose of the vaccine is 93% effective at preventing measles; a second dose boosts effectiveness even further — to 97%, according to the CDC.

From Los Angeles Times • May 6, 2026

Organizations and researchers have produced countless studies on the arts’ effectiveness and ability to engage children cognitively, emotionally, physically, and artistically: in other words, on a holistic level.

From "Music and the Child" by Natalie Sarrazin




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