A psychometrist is administering a 4-hour neuropsychological battery to an older adult. After two hours, the examinee is yawning frequently, rubbing their eyes, and their response speed has noticeably slowed. The examinee insists they are "fine to continue." What is the most appropriate action for the psychometrist to take?
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A
Continue the testing session as planned to adhere to the schedule and respect the examinee's stated wish.
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B
Discontinue the testing for the day and reschedule the remainder to avoid collecting invalid data.
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C
Administer the remaining tests in a different, easier order to reduce the cognitive load on the examinee.
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D
Insist on taking a mandatory 10-15 minute break, explaining that it is a standard part of the procedure to ensure optimal performance.