▁and ▁suffering ▁after ▁World ▁War ▁I , ▁C att ell ▁was ▁increasing ly ▁attract ed ▁to ▁the ▁idea ▁of ▁applying ▁the ▁tools ▁of ▁science ▁to ▁the ▁serious ▁human ▁problems ▁that ▁he ▁saw ▁around ▁him . ▁He ▁stated ▁that ▁in ▁the ▁cultural ▁up he aval ▁after ▁W WI , ▁he ▁felt ▁that ▁his ▁labor atory ▁table ▁had ▁begun ▁to ▁seem ▁too ▁small ▁and ▁the ▁world ' s ▁problems ▁so ▁vast . ▁Thus , ▁he ▁decided ▁to ▁change ▁his ▁field ▁of ▁study ▁and ▁purs ue ▁a ▁Ph . D ▁in ▁psych ology ▁at ▁King ' s ▁College , ▁London , ▁which ▁he ▁received ▁in ▁ 1 9 2 9 . ▁The ▁title ▁of ▁his ▁Ph . D ▁dis sert ation ▁was ▁" The ▁Sub jective ▁Character ▁of ▁C ogn ition ▁and ▁Pre - S ens ational ▁Development ▁of ▁Per ception ". ▁His ▁Ph . D ▁ad visor ▁at ▁King ' s ▁College , ▁London , ▁was ▁Francis ▁A vel ing , ▁D . D ., ▁D . Sc ., ▁Ph . D ., ▁D . L itt ., ▁who ▁was ▁also ▁President ▁of ▁the ▁British ▁Psych ological ▁Society ▁from ▁ 1 9 2 6 ▁until ▁ 1 9 2 9 . ▁In ▁ 1 9 3 9 , ▁C att ell ▁was ▁hon ored ▁for ▁his ▁out standing ▁contributions ▁to ▁psych ological ▁research ▁with ▁confer ral ▁of ▁the ▁pr estig ious ▁higher ▁doctor ate ▁D . Sc . ▁from ▁the ▁University ▁of ▁London . ▁ ▁While ▁working ▁on ▁his ▁Ph . D ., ▁C att