Definitions

1. noun

The state or quality of being effective; the extent to which something is able to produce a desired or intended result.

“The researcher studied the efficacy of the new medication in treating the disease.”

2. noun

The ability to achieve a desired result; effectiveness.

“The team’s efficacy in solving the complex problem impressed their clients.”

3. noun

A measure of the effectiveness of something.

“The study analyzed the efficacy of the new teaching method in improving student scores.”

4. noun

In pharmacology, the ability of a drug to produce a therapeutic effect.

“The efficacy of the antibiotic was measured by its ability to kill bacteria in the lab test.”

5. noun

In statistics, a measure of the accuracy of a test or measurement.

“The researcher calculated the efficacy of the diagnostic test in identifying the disease.”