The Dunning Kruger Effect is a state of mind where somone thinks they are good at something, and cannot see that they are not. In other words they are incompetent, and are unable to recognise their incompetence. In fact they think the opposite – they think are good at what they do.

Instead of listening and try to work out how students can improve. They act dismayed at how they are being measured. And that the measure must be wrong. In tests the lowest scoring students rated themselves highly competent. The most obvious every day example might be male car drivers over estimating their driving skills.

The “dual burden” is that people are not only incompetent; but their incompetence limits their mental ability to see how incompetent they really are. It is not restricted to people with low IQ. Highly intelligent people can have limited skills to pick up on their own incompetence.

Apparently this can be rectified. As most people given the training and shown what the expected  competency is can learn the skills to gain the competence.
Well some people can.