Australian economist Andrew Leigh has entered into public discussion with Noel Pearson about Aboriginal inequality by proposing that randomised trials should be initiated for those educational innovations supposedly aimed at improving outcomes for disadvantaged groups. He takes his cue from Harvard economist Roland Fryer, who is well known for testing the effectiveness of cash rewards on academic achievement. Provocatively, Leigh has called proponents of the approach ‘the randomistas‘. (You can also hear about randomised education trials).
The rhetoric of the scientific method sounds very sensible. After all, if it works in medicine, why shouldn’t it work in education? Indeed we can go further: since we don’t accept medicine that hasn’t been tested in a randomised trial framework, why should we accept education without similar confirmation of its effectiveness? The point Fryer and now Leigh have been making is that much educational policy is ideologically driven, rather than evidence driven. We need proper evidence and for them, randomisation is the mark of proper evidence.
So is there any downside? Continue reading “Tempting fate in schools: contrived randomness as educational policy”