(AP) AUSTIN State education officials say an investigation of possible cheating on state standardized tests have cleared 592 schools of wrongdoing.

The announcement was made Thursday by Texas Education Agency officials. That's after an analysis earlier in 2006 flagged 700 schools as having irregularities during the Texas Assessment of Knowledge and Skills (TAKS) 2005 testing period.

The agency's Task Force on Test Integrity says security audits and some on-site investigations found no evidence that 592 schools had violated the state's test security system.

Education Commissioner Shirley Neeley has agreed to close investigations into those schools. Cases are still open for 105 schools that were flagged for potential problems. Three other schools questioned have since closed.

About $3 million will go to 23 schools that have been cleared and qualified for the Governor's Educator Excellence Award. That's a teacher incentive pay grant.