Almost 200 elementary and middle schools in Georgia had enough eraser marks on standardized test to warrant further investigations.
The Governor's Office of Student Achievement looked at how many answers were changed from wrong to right on every state-mandated test taken last year. Schools showing a lot of changes were flagged.
Kathleen Mathers heads the achievement office. She says they found moderate to severe concerns in 191 schools.
"This is not the end of the investigation. This is in many cases a hand off. When you look across the state and you have this many schools that need to be examined more closely, it's entirely appropriate to have the local superintendent conduct those investigations."
Half of the 74 schools with severe concerns are in the city of Atlanta.
Superintendent Beverly Hall issued a statement saying she will work to find the root cause of those findings. She says APS will also launch its own independent investigation.