NPR's Tovia Smith reports on the scientific research used to support the discriminatory claims made on the phone. It is called "language analysis".
Large quantities of evidence describing the linguistic characterization of ethnic groups within the language community are gathered, but linguistic characterization also applies to ethnic or ethnic group members. This has been demonstrated in a study by Jaquelyn Rahman. This study explains African-Americans' perspective of native language English (AAVE) and middle-class African Americans against standard American English. While discovering that she is sensing African-Americans using standard English as "white of performance" whilst the target is tying AAVE to their legacy.
Linguistic analysis is a practice of recognizing individual social characteristics based on auditory clues, especially dialects and accent. This theory, originally developed by Professor John Boe, is used to explain discriminatory practices in the housing market, based on the fact that housing managers are heard online for prospects. Language profiling has problems such as lawsuits, employment opportunities, education and so on. Oftentimes this theory is explained as racial profiling and auditory equivalents. The majority of research and evidence supporting this theory involves race and ethnic differences, its applicability applies to race or ethnic groups, perceived sexual and sexual orientation, and geographical origin I will.