Agreed. I think the intent of the previous commenters was more along the lines of "How do we determine which employees are working earnestly and effectively vs

Agreed. I think the intent of the previous commenters was more along the lines of "How do we determine which employees are working earnestly and effectively vs working without motivation or ineffectively?" Its important to take time out of the question, because time spent, after a very small minimum, isn't a strong indicator of performance.