With a greater than 99% probability that this is a real effect, i wouldn’t expect this to be difficult to reproduce.

But it turns out I misread the paper. It was actually an 80% effect size so greater than 99.9% chance of being a real effect.

Of course it could be the case that there is something different about young college students that makes them react very; very differently to LLM usage, but I wouldn’t bet on it.