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Table 1 Sample sizes in NAMER 2009, 2014 and TIMSS 2011, 2015 in Ireland

From: Examining educational inequalities: insights in the context of improved mathematics performance on national and international assessments at primary level in Ireland

  NAMER TIMSS
2009 2014 2011 2015
Number of schools 140 139 151 149
Number of students 3832 3312 4560 4344
  1. In NAMER 2014, a total sample of 4144 6th-grade students completed the mathematics assessment. However, experimental test booklets comprising fewer items were administered to a subsample. To facilitate a direct comparison of mathematics scores across the years, data for students who completed the shorter version of the mathematics test were not included in the analyses reported in this paper