ADHD can be responsible for poor listening skills, which relates to the inability to focus. It is common for those with this disorder to be unable to listen to or follow an extended conversation or presentation. This is especially problematic in the work situation and may result in an erratic work history.
Another facet of poor listening skills is the propensity to interrupt others when they are speaking. Although this may seem rude, it may be because the person is afraid they may not remember what they wanted to say.