Efficacy is the capacity (or the power) to produce an effect or to achieve a desired result.
Effectivness in battle.
no conditions
judging the effectivness of the policy.
judging the effectivness of the policy.
what is the effectivness of some impersonal comunication?
mission statement for cost effectivness
the word "importance or important" referrs more to the meaning of something, like if if a pictures particular importance. "effectivness or effective" referrs more to the use of something, like a jackhammer's effectivness is high when it comes to breaking up concrete.
Illness does not affect how well Depo Provera works.
I will choose both because effectivness and efficiency are important to the organization . I will choose the both because efficiency and effectivness are important to the organization.
Renee Ginsburg Rabinowitz has written: 'Personal causation, role-taking and effectivness with peers'
Olli Sipinen has written: 'The effectivness of punishments and the school climate' 'Factors constituting classroom climate'
When taking Antibiotics you need to use a back-up method of protection for 2 weeks.