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After more than two decades of deterioration in the Israeli TIMSS results in mathematics, Israel scored number 7 among all countries participating in the world. As the probability of such a sudden, huge improvement seems negligible, this article sheds a new light on the Israel “achievements”. It shows that the students participating were not a sample according to statistical definitions and in additions – two sub-populations with the lowest Israeli achievements did not participate in this international examination.
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Hanna David (2014) studied this question.
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