Spearman’s hypothesis tested in Yemen on the items of the Standard Progressive Matrices Plus: A reply to Díaz, Sellami, Infanzón, Lanzón, & Lynn - 2012

Salaheldin Farah Attallah Bakhiet , Jan te Nijenhuis , Michael van den Hoek , Mohammed Mohammed Ateik Al-Khadher , Shibaev Vladimir

Spearman’s hypothesis simply states that differences between groups on an IQ test are a function of the general intelligence (g). At the item level this would mean the magnitude of the differences between groups are smaller on low-g-loading items and larger on items with a high g loading. An empirical ...