It is indisputable that standardized tests have a disparate impact on members of minority groups. Asian students perform exceptionally well on math tests. White and Asian students have higher scores than black and Hispanic students.

The same disparate impact is found on teacher tests as on student tests. Occasionally, an African-American teacher will sue, claiming test bias. They usually win. New York State’s teacher licensing exam attempted to be “more rigorous,” but making them harder to pass cemented the gap between the pass rates of different racial groups.

“On a common licensing exam called Praxis Core, a new test given in 31 states or jurisdictions that was created to be more rigorous than its predecessor, 55 percent of white candidates taking the test since October 2013 passed the math portion on their first try, according to the preliminary data from the Educational Testing Service, which designed the exam. The passing rate for first-time African-American test takers was 21.5 percent, and for Hispanic test takers, 35 percent. A similar gap was seen on the reading and writing portions.

“In New York, which now has four separate licensing tests that candidates must pass, an analysis last year of the most difficult exam found that during a six-month period, only 41 percent of black and 46 percent of Hispanic candidates passed the test their first time, compared with 64 percent of their white counterparts.”

This is a paradox, as two policy goals conflict: to diversify the teaching force and to make teacher certification exams more difficult to pass. It seems likely that aligning teacher exams with the Common Core will worsen the problem.

Read Alan Singer here on the uselessness of standized tests for teacher certification. He writes that such tests are notoriously unable to predict who will be a good teacher and who will be a bad teacher.

He recommends remedies, beginning with FIRE PEARSON.

He concludes:

“There is no foolproof way to evaluate prospective teachers or anybody else for that matter. People have bad hair days and perform below expectation. Life also interferes with work and sometimes people do not develop as expected. Just look at some of the high draft choices in professional sports. There needs to be support and evaluations along the way and alternative career paths. There is no inoculation or test that can be administered at the start of someone’s career that will ensure people will be great teachers down the road.”