One of the most compelling studies done on the subject of forms of English reflecting allegiances, aspirations, or rejection was the seminal sociolinguistic work done by William Labov on Martha's Vineyard Island in 1963. He found that allegiance was shown by the Portuguese immigrants to the island by the intensity of their learned Vineyard accent. Their deep allegiance to their adopted homeland precipitated an exaggeration of the distinctive feature's of the unique Martha's Vineyard phonetic and dialectical features.
Labov also found that the aspirations of high school students were reflected in the degree to which they had accommodated the Bostonian accent of Boston's summer visitors to the Vineyard. The youths who aspired to careers on the mainland in Boston had significantly pronounced Bostonian phonetic and dialectic features in their speech while youths who aspired to continue the traditional fisherman's life on the Vineyard had significantly pronounced Vineyard phonetic and dialectic patterns.
Conversely, Labov found that natives of Martha's Vineyard who rejected the mainland life, often after having tried it, had deeply exaggerated features of Vineyard phonetic patterns and dialect features akin to the exaggeration found in the Portuguese who showed their allegiance to their new home by exaggerating its unique linguistic features.