A student prepares for the SAT in Pembroke Pines, Fla., last year.
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Updated: June 9, 2015 2:19 PM ET | Originally published: June 8, 2015 4:02 PM EDT

Some SAT scores are being called into question after students taking the college-entrance exam on Saturday had extra time to complete a section of the test.

The SAT student test books incorrectly said students had “25 minutes” to complete the test, while the manual and script contained the correct time limit of “20 minutes,” according to a statement on the College Board website.

Test takers and parents posted their concerns on sites like College Confidential over the mishap over the weekend, with some students saying the proctors noticed the mistake and allotted the correct time. Others said their proctors allowed students to take the 20-minute section for 25 minutes.

The Education Testing Service notified the College Board that there was a “printing error” on the SAT booklets on Saturday before noon.

“We apologize for this error,” said the College Board said in a statement Monday. “After a comprehensive review and statistical analysis, the College Board and ETS have determined that the affected sections will not be scored and we will still be able to provide reliable scores for all students who took the SAT on June 6. We expect to deliver scores within the usual timeframe.”

The statement went on to say that the tests are designed to accommodate such incidents–from fire drills to disruptive behavior.

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