However, the association said the lack of direction and political progress had led to the probability of an unregulated transfer test system.

BBC: Principals back selection tests

If one in 1, 000 people have a disease and the false-positive rate for a test is 5%, then the probability that a person testing positive has the disease is at most 2%.

ECONOMIST: Letters | The

They find a a positive effect on test scores, compulsary school grades, choosing an academic high-school track, high-school grades, probability of attending college, and average education by age 24.

FORBES: Lessons on School Choice from Sweden