Efficacy, effectiveness, efficiency
These terms sound very similar and are often used interchangeably in everyday conversations.
- Efficacy means getting stuff done. (Related question: Is it working?)
- Effectiveness means doing the right things. (Is it working well?)
- Efficiency means doing things right. (Is it working in the most economical way?)
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Effectiveness Vs Efficiency
- Effectiveness is goal orientation. It's picking something to do. This is doing the right things—picking a goal and doing that goal.
- Efficiency is doing things in an economical way, process-oriented.
Effectiveness: Doing the right things
Efficacy is not always enough. Medication that improves a patient's symptoms under ideal conditions is technically getting things done, but not always the right things.
Effectiveness in clinical trials is about how well a treatment works in the real world, not just in per...
Productivity and Effectiveness
Efficiency does not necessarily guarantee effectiveness. Getting more done is not an accurate barometer for measuring your impact. Consider whether you’re being effective in achieving what you actually want.
Think about what it is you’re really ...
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