LOUISVILLE, Ky. (WDRB) – Students at duPont Manual High School did not have access to questions on an Advanced Placement exam that was postponed earlier this month, the testing administrator found during its investigation.

Principal Jerry Mayes told parents he delayed part of a college-credit test on May 13 “to protect the interests of our students.”

AP exams at Assumption and Atherton high schools also were pushed back. Atherton Principal Tom Aberli told WDRB News that the issue involved a Post-It note with “items on it that were similar to those that would be on the assessment."

The Advanced Placement Program acknowledged the “circulation of very specific details” about free-response questions on an AP human geography exam, the company’s executive director, Michael Sherman, wrote in a May 24 letter to Mayes.

But an inspection of the exam confirmed that “students had not accessed those secure materials,” Sherman wrote.

“We have high confidence in the integrity of the teacher who was interviewed, and found no evidence that the teacher disclosed exam questions to any students,” the letter says.

Hundreds of students at the three schools were affected by the disruption. Assumption students were to retake the exam today, while Manual and Atherton scheduled the test last week.

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