vezi ACEST articol în care sunt sumarizate Talent Igniter and the Ruf Estimates of Levels of Gifted the levels of giftedness http://talentigniter.com/ruf-estimates Estimates of Levels of Giftedness Ruf Estimates of Levels of Giftedness Talentigniter – Ruf Estimates Kids I.Q. http://www.talentigniter.com/ruf-estimates Talent Igniter and the Ruf Estimates of Levels of Gifted Ruf Estimates of Levels of Giftedness (LOG)