Self-reported studies are arguably weaker evidence, but are common in some areas for ethics reasons. In general, if errors are truly random, than they will cancel out over larger/frequent population samples.

The study conclusion inferred the skills needed to be effective at some task, are the same skills needed to correctly evaluate if you are actually proficient at the same tasks.

https://arxiv.org/abs/2505.02151

If the data infers another explanation is more applicable, than I'd be interested in the primary papers/studies the editorialized opinion seems to have omitted. =3