어떤 것이 원하는 결과를 산출하는 데 성공적인 정도; 효력.
The degree to which something is successful in producing a desired result; efficacy.
예문:
"We need to measure the long-term effectiveness of the new training program."
"The team questioned the overall effectiveness of the marketing campaign due to low sales figures."
"Achieving high effectiveness requires careful planning and consistent execution."