Praise effort

Mick Delaney said " Any business or industry that pays equal rewards to its goof-offs and its eager beavers."
So how do you go about addressing the pressure to be fair while still rewarding results? Praise effort, but reward only results. Since whatever gets rewarded gets done, if you continually praise effort and do it for everyone, people will continue to work hard. If they are working in their strength zones and keep working hard, they will eventually achieve good results. At that time, reward them financially.