Narcissism is notoriously difficult to diagnose. Narcissists are skilled liars and actors, so it can be hard to tell if their answers are ever genuine. A narcissist can easily pass a psychological evaluation if they are aware that the test is for intervention. In most cases, they don’t want to cure their narcissism because they don’t see it as a problem or because it affirms their delusional views of themselves. Let’s look at how narcissists might approach a psychological evaluation.