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Table 7 Unweighted effect sizes and descriptive statistics for “Confidence in Mathematics” for eighth graders

From: Gender, affect, and math: a cross-national meta-analysis of Trends in International Mathematics and Science Study 2015 outcomes

CountriesdMean 1Mean 2SD1SD2
Oman0.1810.6910.371.841.7
Kazakhstan0.1110.6110.421.771.76
Saudi Arabia0.0610.2310.121.781.76
Japan0.048.668.298.669.29
Jordan0.0210.4710.441.911.86
Bahrain− 0.0210.110.132.041.84
Egypt− 0.0410.3610.431.81.75
Malaysia− 0.069.449.521.391.31
Morocco− 0.069.9610.061.631.46
Turkey− 0.069.689.822.42.15
Iran− 0.0710.0910.242.222.01
Lebanon− 0.0810.3510.511.991.94
United Arab Emirates− 0.0810.3410.491.941.93
Botswana− 0.099.699.841.641.52
Israel− 0.0910.5510.762.362.18
Qatar− 0.110.1610.362.031.81
United States− 0.1310.1510.462.382.28
Georgia− 0.149.8810.141.881.76
Lithuania− 0.1510.0310.312.011.84
South Africa− 0.159.679.931.831.74
Russian Federation− 0.169.69102.011.91
Kuwait− 0.1710.0510.381.961.86
Hungary− 0.189.9810.382.322.24
Argentina− 0.189.7510.142.282.13
Slovenia− 0.199.6610.042.051.93
Singapore− 0.219.519.972.142.15
Ireland− 0.229.7910.262.182.08
Korea Republic− 0.229.249.641.771.9
Thailand− 0.2299.311.451.4
Malta− 0.239.489.982.272.12
Chile− 0.259.469.982.21.92
Italy− 0.269.710.312.42.34
Canada− 0.2810.2810.942.422.33
Chinese Taipei− 0.298.749.422.252.46
New Zealand− 0.319.6510.221.781.92
Norway− 0.3310.0310.812.472.29
Hong Kong− 0.349.049.782.172.23
Australia− 0.369.6310.372.122.03
Sweden− 0.389.7210.562.22.23
England− 0.399.8910.641.911.92
  1. Positive values show the superiority of females and negative values show the superiority of males