How To Motivate Using, Intrinsic And Extrinsic Motivation?

Extrinsic motivation is when a person is motivated because of something external to themselves – such as a reward for doing the task, or fear of punishment for not doing the task.
Intrinsic motivation is when a person is able to motivate themselves internally and gets their own satisfaction for doing the task(s) from within.
Psychological studies have shown time and time again that Intrinsic motivation is the best sort of motivation to have. Intrinsic motivation is more durable. Extrinsic motivation is unreliable and can be lost if the reward or punishment is taken away.
Children for instance are largely extrinsically motivated. For this reason, parents and teachers often have to “bribe” kids into good behaviour etc (or perhaps punish them for not behaving). A sign of maturity is often when a person doesn’t rely on extrinsic motivation to do things, but uses their own attitude to motivate themselves (ie. intrinsic).
In the case of an employee, HR often looks for people with a good “work ethic” in that they are intrinsically motivated. Unfortunately not all employees are like this, and some need to be extrinsically motivated.
If you have one of these employees with a poor work ethic, it’s important to understand that intrinsic motivation takes a long time to develop. Some ways to foster it, would be to give that employee a task they enjoy doing, or give them some responsibility and see if they can rely on their own motivation to take charge.
It’s also worth investigating to see if an employee is procrastinating because of some fear they have (e.g. fear of asking questions, fear of failure, perfectionist attitude etc). If so, it might be best to refer them to your hr department for counselling etc.
Other than that, you will have to rely on extrinsic techniques such as rewards or reprimands in order to motivate them.