Crémieux(@cremieuxrecueil):Did student ability plummet on the PISA examination this year? No, they did not experience any meaningful change. The large observed change is due to two factors: 1. Measurement issues (which could not be fully corrected due to a format change) 2. Sampling changes

Crémieux

@cremieuxrecueil

I write about genetics, 'metrics, and demographics. Read my long-form writing at

Joined March 2023

2.3K Following 338K Followers

Crémieux@cremieuxrecueil

2026.09.08 20:22

Did student ability plummet on the PISA examination this year? No, they did not experience any meaningful change. The large observed change is due to two factors: 1. Measurement issues (which could not be fully corrected due to a format change) 2. Sampling changes