Jukka Aakula’s Reviews > The g Factor: The Science of Mental Ability > Status Update

How g was discovered. Even if Spearman certainly was wrong on some issues and his mathematics was not elegant, the persistence of his thinking during the last 100+ years has been strong. The science of mental ability has been attacked by many people - even more than Darwin's theory of evolution. However it has persisted and developed further through a scientific process.