This article is interesting. It would be even more interesting to know how many of the high school drops outs and others with limited educational experiences have a history of brain injury or other disability that limited their academic achievement.

Those with more years of education also were likely to be better able to learn and discover work-arounds and accommodations that allowed them to regain pre-injury functions.

It should be noted that the group studied suffered moderate to severe head injuries requiring hospitalization and it appears, in-patient rehab.