One of their discoveries was that, though rarely, even some of the considered "egoists" sometimes gave more than expected because that would help others, leading to the conclusion that there are other factors in charity, such as a person's environment and values.
wˈʌn ʌv ðɛɹ dɪskˈʌvɚɹiz wʌz ðˈæt, ðˌoʊ ɹˈɛɹli, ˈiːvən sˌʌm ʌvðə kənsˈɪdɚd "ˈiːɡoʊˌɪsts" sˈʌmtaɪmz ɡˈeɪv mˈoːɹ ðɐn ɛkspˈɛktᵻd bɪkˈʌz ðæt wʊd hˈɛlp ˈʌðɚz, lˈiːdɪŋ tə ðə kəŋklˈuːʒən ðæt ðɛɹˌɑːɹ ˈʌðɚ fˈæktɚz ɪn tʃˈæɹᵻɾi, sˈʌtʃ ɐz ɐ pˈɜːsənz ɛnvˈaɪɹənmənt ænd vˈæljuːz.