Datoteka:IQ distribution.svgDescriptionIQ distribution.svg English: Normalized distribution of IQ with mean of 100 and standard deviation 15 Date 5 November 2013, 12:50:58 Source
Datoteka:IQ curve.svgKaufman, A.S. (2009) IQ Testing 101, New York (NY): Springer Publishing, pp. 104−109 ISBN: 978-0-8261-0629-2. I, the copyright holder of this work, hereby
Datoteka:IQ curve (2).svgKaufman, A.S. (2009) IQ Testing 101, New York (NY): Springer Publishing, pp. 104−109 ISBN: 978-0-8261-0629-2. I, the copyright holder of this work, hereby
Datoteka:Turkey IQ map.svgDescriptionTurkey IQ map.svg Türkçe: Türkiye'nin bölgelere göre IQ haritası English: Regional IQ distribution in Turkey according to Lynn, Saker and Cheng