(WSB Radio)  The former principal of Atherton Elementary School, in DeKalb County, is under arrest, charged in the CRCT cheating probe.

James Berry resigned as principal last week, after the allegation of altering answers surfaced.

Doretha Alexander, an assistant principal at the school, was also arrested.

Berry was arrested this morning. Alexander turned herself in last night.

"Falsifying and altering government documents," says DeKalb County Chief Assistant District Attorney Don Geary when talking about the charges they face.  And the possible penalty?  "Two to ten years," Geary tells WSB.

State officials began their probe of Atherton and three other schools in the state after they discovered  a high number of eraser marks on CRCT tests.

In addition to Atherton an investigation was launched into the grades of students at a school in Fulton County, one in Atlanta and one in the city of Brunswick.

DeKalb school officials say that no students and no teachers have been implicated in the changing of answers on the math portion of the CRCT test.

The standardized test helps determine if a school meets federal standards.

According to state and local officials, an audit by the Governor's Office of Student Achievement revealed that someone at those four schools changed the answers for the students.

At Atherton, for example, the audit found that half of the school's fifth-graders did not pass a state test in the spring.  But, when the 32 students took the test again, 26 passed and with scores at the highest level.