School reformers who want to improve schools through testing probably do not intend to add stress on the lives of students. But it's possible that their emphasis on accountability and standards will have that effect.
Here's an article about Singapore's school system, which as you may already know, is one of the top-performing school systems anywhere on earth—as measured by high test scores.
But besides high test scores, the rigor of Singapore schooling seems to produce an unintended result: a suicide problem among its youth.
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