effectiveness

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.

According to media reports, the study used hospital patients’ vaccination status to calculate the success of the season’s vaccine, a method long used to determine flu vaccine effectiveness.

From Los Angeles Times • Apr. 14, 2026

“Skepticism remains over the effectiveness of the cease-fire agreement, leaving the market wary. Any headlines suggesting continued combat could easily trigger another round of dollar buying,” Morimoto says.

From The Wall Street Journal • Apr. 9, 2026

It claimed "stopping full-time pay for part-time work... could increase capacity and the effectiveness of current staff and allow for headcount reduction", which would "save around £270,000".

From BBC • Apr. 9, 2026

Research by the International Monetary Fund finds that rule of law is necessary for long-term economic growth and that “within the rule of law, the effectiveness of the justice system…are critical to economic outcomes.”

From Barron's • Apr. 1, 2026

The effectiveness of the fly dope ointment wore off after about a half hour—partly because they were sweating profusely from the intense heat.

From "Death on the River of Doubt" by Samantha Seiple