Department of Education officials are looking into possible FCAT cheating at school districts in South Florida and throughout the state.
Broward, Miami-Dade, and Palm Beach are are among 14 districts being asked to check the results of the Florida Comprehensive Assessment Tests.
State officials are in the process of investigating irregularities on nearly 7,000 exams.
An independent security company found a high number of common answers and excessive erasures on 6,697 of the 4 million exams taken this year.
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Other counties include Duval, Flagler, Gadsen, Hillsborough, Jefferson, Lee, Leon, Manatee, Polk, Orange and Seminole.
A Miami-Dade County Schools official said four schools are being examined.
Names of the schools suspected of cheating have not been released as the investigation continues. Schools found guilty of cheating could face sanctions.
Copyright The Associated Press