What is the difference between effectiveness and efficacy?
effectiveness | efficacy | Related terms |
The property of being effective, of achieving results.
The capacity or potential for achieving results.
*
The degree to which something achieves results.
* 2013 , Phil McNulty, "[http://www.bbc.co.uk/sport/0/football/23830980]", BBC Sport , 1 September 2013:
(uncountable) Ability to produce a desired amount of a desired effect.
Efficacy is a related term of effectiveness.
As nouns the difference between effectiveness and efficacy
is that effectiveness is the property of being effective, of achieving results while efficacy is ability to produce a desired amount of a desired effect.effectiveness
English
(wikipedia effectiveness)Noun
(-)- The effectiveness of the drug was well established.
- He questioned the effectiveness of the treatment.
- United were having more possession but a sign of the effectiveness of Liverpool's defence was that it took the visitors 76 minutes to force Mignolet into serious action, when he dived to punch away a shot from substitute Nani.
