Putanga 1: I te tau 1933, i tuhituhi a Cattell ko ngā iwi katoa o Te Tai Tokerau, ko te iwi Pākehā i tino whakawhanakehia i roto i te mātauranga me te pūmautanga o te āhua. Putanga 2: I te tau 1933 ka tuhituhi a Cattell, i roto i ngā iwi Pākehā katoa, ko te iwi `` Nordic te tino whanake i te mātauranga me te pūmautanga o te āhua. " Pātai: He ōrite te tikanga o te rerenga 1 me te rerenga 2? He Ae, he Kore rānei?
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