Graphical representation of neurobiological requirements for Standard Raven's Progressive Matrices questions. The NOB score (bottom) and the PCT score (top) as a function of question number. The five sets of 12 questions are shown with different markers.

  
  Part of: Vyshedskiy A, Dunn R, Piryatinsky I (2017) Neurobiological mechanisms for nonverbal IQ tests: implications for instruction of nonverbal children with autism. Research Ideas and Outcomes 3: e13239. https://doi.org/10.3897/rio.3.e13239