The article spoke about an experiment tat was onducted here in the United States. The purpose of the experiment was to see if a group of people could distinguish between a black person or a white person's voice. According to the article they could not. A point was proven by this experiment & that was that there are differences people normally "assign" to blacks and whites in the way they speak.People usualy assume they can tell the difference between a white person and a black person just by the sound of thier voice. Not so in this case being that the whites i this experiments whose voice they heard grew up around blacks and the blacks they heard grew up around whites.
Analysis of Elements
experiments with linguistics
diversity in speech between ethnic groups
Analysis of Relationships
differences do exist in dialects & accents of certain groups
for the most part accents are learned geographically and not racially