Hi, “certain kind of liberal” here. Always good to see people engaging on the specifics.
A quick summary of my view here:
People learn at different rates. It is overwhelmingly clear that some portion of this variance is genetic; I leave the specifics of what is genetic and what is early childhood to domain experts. Every time I see a successful intervention to increase someone’s rate of learning, I’m thrilled. But people learn at different rates.
Like many, I was drawn to this at first because I did well on tests and was bored in school. It’s not flattering because it’s scandalous, it’s flattering because it’s nice to find something you’re good at! But over time, I became obsessed with a disconnect:
People learn at different rates. But virtually every time politicians talk about school, and every time you look at what’s happening in education policy, you see flat baselines. What percent are “proficient” or “at grade level”? Below a flat line? Crisis. Above it? Privileged; no concern.
Everyone knows kids learn at different rates. And for generations, education policy has been obsessed with burying that, centered around a goal of flattening learning rates. This has distorted research, it has distorted policy, and it harms countless kids in countless schools every day.
Because—forget about anything to do with genetics, and just test kids. Is someone ready for algebra? Teach algebra. Are they ready for novels? Give them novels. Do they need basic phonics practice? Give basic phonics practice. Are they struggling with addition? Teach addition.
Some kids will progress faster. Some will progress slower. The question is not “are they going at the same speed?” but “are they being challenged appropriately? are they being productively taught to their level?”
I would love to shut up about ability differences. But the trouble is, I’m not wrong on the facts. The people who work to flatten education into a one-size-fits-all mess because they refuse to say kids learn at different rates are, and until liberals get serious about it, they will continue to pursue intellectually bankrupt policies that hurt the kids they claim to help, at all levels.
A certain kind of liberal *loves* IQ, standardized test scores, and a scandalous hint of “race-realism”, because it flatters their self-image as dispassionate rationalists negating the egalitarian, moralizing impulses of progressives.
But the problem is they’re *incorrect*.