I'm often surprised that a study like this is even needed, the result seems obvious. Critical thinking is a skill that requires practice to improve at and main

I'm often surprised that a study like this is even needed, the result seems obvious. Critical thinking is a skill that requires practice to improve at and maintain it. Using LLMs pushes the task that would require critical thinking off to something/someone else. Of course the user will get worse at critical thinking when they try to do it less often.