I roto i te 1937 i te mutunga i taea e Popper ki te tiki i te tūranga e whakaaetia ia ki te heke ki Aotearoa, i reira i riro ia kaiako i roto i te rapunga whakaaro i Canterbury University College o te University o New Zealand i Christchurch. Ko reira i konei i tuhituhi ia tona mahi whai mana Te Hapori Open me ona hoariri. I roto i Dunedin tutaki ia te Ahorangi o Physiology John Carew Eccles, a hanga he hoa ora ki a ia. I roto i 1946, i muri i te Pakanga Tuarua o te Ao, neke ia ki te United Kingdom ki te riro i te kaipānui i roto i te arorau, me te tikanga pūtaiao i te London School o Economics. E toru nga tau i muri mai, i roto i 1949, i whakaritea ia he ahorangi o te arorau, me te tikanga pūtaiao i te University o Rānana. i te peresideni o te Aristotelian Society Popper i 1958 ki 1959. i mahue ia i te ora mātauranga i roto i te 1969, ahakoa i noho ia i te toenga hinengaro mo tona ora katoa. i roto i te 1985, i taea e ia
kaiwhakaako i te whakaaro