
PISA math 2012

TIMSS grade 8 math 2011


T/NT classification

88.2% [97.6%] (.82)

78.8% [92.6%] (.76)

F/NF classification

77.6% [90.6%] (.74)

65.4% [86.6%] (.65)

 The first number is the percentage of items where all six scorers agreed on the classification. The number in the straight brackets is the percentage of items for which at least 5 scorers agreed. The number in parentheses is interrater reliability as measured by Fleiss’ kappa