It is the most broadly studied variety of American English and has been the subject of many high profile court cases over issues like school instruction and linguistic profiling in employment and criminal justice.

它是美国英语中研究最广泛的变体，并且一直是许多备受瞩目的法庭案件的主题，涉及学校教学和就业和刑事司法中的语言概况等问题。