Complex sentence: She found that black applicants got a callback or job offer half as often as equally qualified white applicants--a black applicant with a clean record gets a callback or job offer about as often as a white applicant with a felony conviction.
Split into simpler sentences: She found that black applicants got a callback or job offer half as often as equally qualified white applicants. A black applicant with a clean record got a callback or job offer about as often as a white applicant with a felony conviction.