Irregularities in PISA tests in Catalonia skew Spanish results
23% of selected students in Catalonia were excluded from PISA tests, exceeding the 5% limit.
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5 %
23% of selected students in Catalonia were excluded from PISA tests, exceeding the 5% limit
The fact
This massive exclusion affects the statistical validity of results for Spain.
The Catalan government is criticized for these irregularities.
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Why it matters
Ces irrégularités remettent en question la fiabilité des résultats PISA pour l'Espagne et pourraient influencer les politiques éducatives nationales. Elles soulignent aussi les tensions entre les régions et le gouvernement central.