wˈʌn ʌvðə mˈoʊst sɪɡnˈɪfɪkənt ɹˈiːzənz fɔːɹ ðɪs ɪz bɪkˈʌz ʌv fæmˈɪlɪəl sˌoʊʃəlᵻzˈeɪʃən wɪðˌɪn lˈoʊɚɹ ˌɛsˌiːˈɛs fˈæmɪliz.
One of the most significant reasons for this is because of familial socialization within lower SES families.