Oxford Researchers Found That AI Is Making Students Worse at Critical Thinking. Here’s the Evidence

When students are typing into something other than a document, a certain kind of silence descends upon the classroom. When a screen presents a neat paragraph in a matter of seconds, you can see it in the half-smile and slightly unfocused gaze. Instructors have been observing it for some time. The Oxford University Press report, which was released following a survey of 2,000 British teenagers between the ages of thirteen and eighteen, merely provided statistics to support the suspicions of many educators.

Eighty percent of those students reported using AI on a regular basis for academic purposes. Merely 2% reported not touching it at all. Just that gap conveys a message. What’s more startling, though, is that 62% of them think AI is making them worse rather than better at the things they should be learning in school. 25% acknowledged that it makes the process of finding answers “too easy.”

According to 10% of respondents, it has reduced their creativity. Additionally, a thirteen-year-old boy who was mentioned in passing in the report claimed to be “dependent on it now.” That one sentence sticks in your mind.

When describing the complexity of the students’ own responses, Alexandra Tomescu, who was involved in the OUP study, sounded almost shocked. It turns out that teenagers are aware of what is happening to them. They understand the distinction between relying on a crutch and using a tool. Adults may have long underestimated the self-awareness of this generation. It is unsettling to watch them explain the trade-off—speed for depth, convenience for skill—in a way the researchers were unable to pinpoint.

The Oxford results are consistent with something more robust, measured in brainwaves. Fifty-four students wearing EEG sensors participated in SAT-style essay sessions earlier this year at MIT’s Media Lab. Google was used by one group and ChatGPT by another. One did not use anything. Out of the thirty-two measured brain regions, the ChatGPT group had the least amount of activity.

The graders described their essays as “soulless.” An hour later, many were unable to recall what they had written. Many had stopped pretending to write by the third essay; instead, they were just copying and pasting, making small edits, and turning it in.

In contrast, the brain-only group demonstrated increased activity in the areas associated with creativity, memory, and problem-solving. Additionally, they said they were happier with the results. Reading both studies together gives the impression that something antiquated is being subtly traded away: the laborious, occasionally annoying process of creating an idea from scratch.

According to Daniel Williams, an assistant headteacher in Birmingham, students understand the benefits of AI for brainstorming and revision, but they more frequently use it as a shortcut than as a teaching tool. According to half of the students polled, they want their schools to provide more precise guidance. According to a third, their teachers don’t seem comfortable utilizing AI. Any educator would find it challenging to oversee a technology that is constantly changing its own set of rules.

The Oxford report’s coauthor, Erika Galea, referred to this novel cognitive fusion as “synthetic cognition.” It’s a thought-provoking phrase. She maintained that safeguarding the depth of human thought while students grow up next to AI is the true challenge, rather than teaching them how to master it. It’s still unclear if schools will be able to figure that out in time. It is evident that the generation being shaped by these tools is already requesting assistance in their own cautious manner.