An IEA-ETS Research Institute Journal
Table 5 Classification of TIMSS Advanced items using the T/NT dichotomy, in percentages of items
TA 2015 mathematics (%) | TA 2015 physics (%) | |
|---|---|---|
Classified as T [using theorem(s)] by at least 3 of 4 scorers | 78.6 | 14.6 |
Opinions divided (2-2) | 2.9 | 5.8 |
Classified as NT [not using theorem(s)] by at least 3 of 4 scorers | 18.4 | 79.6 |