Use of "He don?t" etc. by Sarah's mother

[Carson Sch ütze]

Hi everyone,

Can anyone point me to literature that observes/discusses that in the
transcripts of Sarah from the Brown et al. Harvard study, the mother (and
also the father, but we hear less of him) uses "don't" with 3rd person
singular subjects, in apparent free variation with "doesn't"?

Thanks.

-- 

Prof. Carson T. Schutze     Department of Linguistics, UCLA
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