9 4 5 . ▁With ▁this ▁newly ▁created ▁research ▁professor ship ▁in ▁psych ology , ▁he ▁was ▁able ▁to ▁obtain ▁sufficient ▁grant ▁support ▁for ▁two ▁Ph . D . ▁associ ates , ▁four ▁gradu ate ▁research ▁assist ants , ▁and ▁cler ical ▁assistance . ▁ ▁One ▁reason ▁that ▁C att ell ▁moved ▁to ▁the ▁University ▁of ▁Illinois ▁was ▁because ▁the ▁first ▁electronic ▁computer ▁built ▁and ▁owned ▁entirely ▁by ▁a ▁US ▁educational ▁institution ▁" Ill inois ▁Autom atic ▁Computer " ▁was ▁being ▁developed ▁there , ▁which ▁made ▁it ▁possible ▁for ▁him ▁to ▁complete ▁large - scale ▁factor ▁anal ys es . ▁C att ell ▁founded ▁the ▁Labor atory ▁of ▁Person ality ▁Ass ess ment ▁and ▁Group ▁Be havior . ▁In ▁ 1 9 4 9 , ▁he ▁and ▁his ▁wife ▁founded ▁the ▁Institute ▁for ▁Person ality ▁and ▁Ab ility ▁Test ing ▁( IP AT ). ▁Kar en ▁C att ell ▁served ▁as ▁director ▁of ▁IP AT ▁until ▁ 1 9 9 3 . ▁C att ell ▁remained ▁in ▁the ▁Illinois ▁research ▁professor ship ▁until ▁he ▁reached ▁the ▁university ' s ▁mand atory ▁ret irement ▁age ▁in ▁ 1 9 7 3 . ▁ ▁A ▁few ▁years ▁after ▁he ▁retired ▁from ▁the ▁University ▁of ▁Illinois ▁he ▁built ▁a ▁home ▁in ▁B ould er , ▁Colorado , ▁where ▁he ▁wrote ▁and ▁published ▁the ▁results ▁of ▁a ▁variety ▁of ▁research ▁projects ▁that ▁had ▁been ▁left ▁un fin ished ▁in ▁Illinois . ▁ ▁In ▁ 1 9 7 7 , ▁C att ell ▁moved ▁to ▁Hawai i ,