👉 Efficacy is a concept in psychology and neuroscience that refers to an individual's ability or capacity for accomplishing tasks efficiently, effectively, or successfully. It involves the ability to perform actions with minimal effort, time, and resources while achieving goals. In essence, efficacy refers to the degree to which one can accomplish a task without significantly compromising on quality or effectiveness. It is often measured by the rate at which an individual performs various tasks, whether it's in terms of speed, accuracy, or efficiency
