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Table 5 Differences in mathematics performance between TIMSS 2011 and 2015 for selected groups of students

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

  Mean (SE) SD g
Gender
 2011
  Girls 525.7 (3.56) 74.93 0.04
  Boys 529.1 (3.29) 80.75
 2015
  Girls 545.1 (2.60) 70.86 0.06
  Boys 549.4 (2.85) 75.05
Country of birtha
 2011
  Ireland
  Outside of Ireland
 2015
  Ireland 547.5 (2.17) 72.67 0.01
  Outside of Ireland 547.7 (6.75) 76.86
Language spoken at home
 2011*
  English/Irish 530.9 (2.82) 76.88 0.21
  Other 514.7 (5.00) 80.88
 2015*
  English/Irish 550.1 (2.34) 72.61 0.21
  Other 534.8 (5.51) 76.93
No. of books at home
 2011*
  100 or fewer 517.4 (2.68) 75.37 0.51
  More than 100 555.0 (3.18) 69.60
 2015*
  100 or fewer 535.2 (2.45) 71.85 0.58
  More than 100 575.7 (2.52) 65.20
Highest level of parent education
 2011*
  No third-level education 508.8 (3.02) 74.45 0.56
  Third-level education 549.7 (2.98) 71.06
 2015*
  No third-level education 519.8 (2.76) 73.41 0.65
  Third-level education 564.8 (2.45) 66.91
School disadvantaged status
 2011*
  Non-disadvantaged 491.5 (5.43) 74.52 0.58
  Disadvantaged 535.9 (2.94) 81.80
 2015*
  Non-disadvantaged 516.7 (4.71) 70.01 0.52
  Disadvantaged 554.1 (2.25) 78.93
  1. *p < .05
  2. aData on country of birth were not collected in TIMSS 2011