Discrimination in Grading Practices

November 8, 2009 by dave

I thought this was an interesting Education Week post about a Harvard University study that looked at how cultural prejudices impact grading practices.

Study Shows How Discrimination Creeps Into Grading Practices
A study released this month by Harvard University's Kennedy School of Government uses an innovative experimental design method to get an intricate picture of how cultural discrimination plays into the grading decisions that teachers make.

For their study, researchers Rema Hanna and Leigh Linden traveled to India, a country known for its deeply entrenched caste system. The researchers then recruited elementary and middle school-level students from all levels of society to take part in a contest. Students took a battery of tests in mathematics, language, and art and were told that the highest-scoring student in each age group would win 2,500 rupees, or $58, which is about half of their parents' average monthly income. I'd say that's pretty high stakes.

Likewise, 120 teachers from both government and private schools were recruited to grade the test and were paid about $5.80 for their efforts. The tests, however, were randomly assigned different student characteristics. One student, for instance, would be listed on a cover sheet as a member of the Brahmin caste, the highest of India's four social groups, while another might be described as being in the lowest caste, the Shudra. The tests were also graded separately by a research staff member who had no knowledge of any of the students' characteristics.

As might be expected, the results showed that teachers, on average, assigned scores to students from low castes that were 3 percent to 9 percent lower than those of students who were described as being from a high-caste group. What was particularly interesting, though, was that teachers from low-caste groups were driving most of that discrimination; no evidence of bias could be found for teachers from high-caste groups. And they tended to direct it most often toward the lowest-performing students in the low-caste group—the students who presumably best fit the stereotype.

While I realize this is India and not the United States, it does make me wonder whether a similar study in the US would show similar results.

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