Don't assume it's an academic problem though. My grandfather beat my father for years, until my father ran away from home when he was 15, consequently never finishing highschool. He got a GED years later, then eventually a masters degree. There are unfortunately many people in circumstances like his or similar, unable to finish highschool for non-academic reasons. It's important to keep this in mind because otherwise GEDs will be associated with poor academic performance, which is unfair.