effectiveness
effectiveness — noun
1. The ability of something to produce the results that were wanted or intended; ho
The ability of something to produce the results that were wanted or intended; how successfully a method, action, or treatment achieves its goal.
Gabriela measured the effectiveness of her new study method by comparing her grades before and after.
effectiveness of + noun phrase for measured outcomes
The effectiveness of the school's recycling program doubled after they added more collection bins.
Liam questioned the effectiveness of the training after several employees made the same mistake again.
Bao and his team evaluated the effectiveness of the new bus route by surveying commuters for a month.
The effectiveness of the park restoration project became clear when visitors returned in larger numbers.
- efficacy
More formal and technical; preferred in medical and scientific writing
- efficiency
Emphasizes doing things with minimal waste of time or resources, not just achieving results
- success
Broader term referring to a favorable outcome, not necessarily the ability to produce it
- ineffectiveness
The lack of ability to produce desired results
文法句型
effectiveness of + noun phrase
用法筆記
Uncountable noun. Frequently used with the preposition 'of' followed by the thing being measured (e.g., effectiveness of a program, effectiveness of a method).
常見錯誤
2. How well a medical treatment performs when used by ordinary patients in routine
How well a medical treatment performs when used by ordinary patients in routine settings, as opposed to under controlled research conditions.
Sayaka's study measured the vaccine's effectiveness among patients who did not always complete the full dose.
vaccine effectiveness measured in real-world conditions
The drug's real-world effectiveness turned out to be lower than the clinical trials had predicted.
Charlotte analyzed data on the medication's effectiveness across three thousand patients in ordinary clinics.
Doctors noted that the treatment's effectiveness in daily practice was higher than lab results had suggested.
- efficacy
The counterpart term for controlled-condition performance; contrasted with this sense
文法句型
effectiveness of + drug/treatment
用法筆記
Distinguished from 'efficacy' in medical contexts: efficacy refers to performance under carefully controlled trial conditions, while effectiveness refers to performance in everyday real-world use.