Black students in the US are more likely to graduate if they attend a historically black university rather than a predominantly white institution, according to research.

A study found that black students who attend historically black colleges and universities (HBCUs) are between 6 and 16 per cent more likely to graduate within six years than those who attend predominantly white institutions (PWIs).

Ray Franke, assistant professor of higher education at the University of Massachusetts-Boston and co-author of the paper ¡°Degree attainment for black students at HBCUs and PWIs:?a?propensity score matching approach¡±, told that the study factored in age, gender, average income, location, high school success and other factors of students.

He said that this provided a more accurate picture of the success of black students at HBCUs compared with previous studies.

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A , for example, said that the six-year degree completion rate for black students was 32 per cent at HBCUs but 45 per cent at all kinds of institutions, although it did note that HBCUs have higher success rates when compared with institutions serving similar student populations.

Professor Franke added that the results of the new study show that HBCUs need more financial support.

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¡°If we want to increase overall degree completion numbers, then we ought to allocate resources to those institutions that educate students?who have difficulty persisting and graduating,¡± he said.

ellie.bothwell@timeshighereducation.com