ATLANTA -- Georgia schools Superintendent Kathy Cox says some school systems have raised concerns about results of tests gauging student competency.

Cox says that while statewide results are not in, it appears that the pass rate on the eighth grade Criterion-Referenced Competency Test will be about 60 percent.

The superintendent said Monday that preliminary results of the social studies CRCT for sixth and seventh graders put the pass rate at 20 to 30 percent.

Cox said the eighth grade math results were not unexpected because standards have been raised, so a "temporary dip" is not unusual.

She said the results will increase the number of students retesting because fifth and eighth graders must pass reading and math CRCTs to be automatically promoted to the next grade.