- Commentary
Déjà vu All Over Again: A Unitary Biological Mechanism for Intelligence Is (Probably) Untenable
- Louis D. Matzel,
- Dylan W. Crawford and
- Bruno Sauce
Nearly a century ago, Spearman proposed that “specific factors can be regarded as the ‘nuts and bolts’ of cognitive performance…, while the general factor is the mental energy available to power the specific engines”. Geary (2018; 2019) takes Spearma...

