tw enti eth ▁century . ▁ ▁He ▁was ▁a ▁British ▁experimental ▁psych ologist ▁who ▁focused ▁on ▁the ▁mistakes ▁people ▁made ▁when ▁recall ing ▁new ▁information . ▁One ▁of ▁his ▁well - known ▁works ▁was ▁Remember ing : ▁A ▁Study ▁in ▁Ex perimental ▁and ▁Social ▁Psych ology , ▁which ▁he ▁published ▁in ▁ 1 9 3 2 . ▁He ▁is ▁well ▁known ▁for ▁his ▁use ▁of ▁North ▁American ▁Native ▁folk ▁tales , ▁including ▁The ▁War ▁of ▁the ▁G hosts . ▁He ▁would ▁provide ▁participants ▁in ▁his ▁study ▁with ▁an ▁ex cer pt ▁from ▁a ▁story ▁and ▁then ▁asked ▁them ▁to ▁recall ▁it ▁as ▁accur ately ▁as ▁they ▁could . ▁ ▁Ret ention ▁intervals ▁would ▁vary ▁from ▁directly ▁after ▁reading ▁the ▁story ▁to ▁days ▁later . ▁Bart lett ▁found ▁that ▁people ▁st rive ▁for ▁meaning , ▁by ▁attempting ▁to ▁understand ▁the ▁overall ▁meaning ▁of ▁the ▁story . ▁Since ▁the ▁folk ▁tale ▁included ▁super natural ▁elements , ▁people ▁would ▁rational ize ▁them ▁to ▁make ▁them ▁fit ▁better ▁with ▁their ▁own ▁culture . ▁Ult imately , ▁Bart lett ▁argued ▁that ▁the ▁mistakes ▁that ▁the ▁participants ▁made ▁could ▁be ▁attributed ▁to ▁sch ematic ▁intr us ions . ▁ ▁Their ▁current ▁sets ▁of ▁knowledge ▁intr ud ed ▁on ▁their ▁accur ately ▁recall ing ▁the ▁folk ▁tale . ▁ ▁In ▁the ▁ 1 9 5 0 s ▁there ▁was ▁a ▁change ▁in ▁the ▁overall ▁study ▁of ▁memory ▁that ▁has ▁come ▁to ▁be ▁known ▁as ▁the ▁cogn itive ▁revolution . ▁This ▁included ▁new ▁theories ▁on ▁how ▁to ▁view ▁memory , ▁often