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here - TIMSS and PIRLS Home - Boston College

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98 chapter 2: performance at international benchmarks<br />

Bulgarian fourth-grade students outdistanced those in other countries on<br />

the wormery item, with 63 percent receiving full credit (22 percentage points<br />

higher than the next best country). These two items, illustrating the skills <strong>and</strong><br />

strategies demonstrated by the students reaching the Advanced International<br />

Benchmark, were extremely difficult for fourth-grade students in general.<br />

The international averages were 21 <strong>and</strong> 26 percent, respectively.

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