An IEA-ETS Research Institute Journal
Table 4 Classification of TIMSS Advanced items using the F/NF dichotomy, in percentages of items
TA 2015 mathematics (%) | TA 2015 physics (%) | |
|---|---|---|
Classified as F [using formula(s)] by at least 3 of 4 scorers | 67.0 | 31.1 |
Opinions divided (2-2) | 8.7 | 7.8 |
Classified as NF [not using formula(s)] by at least 3 of 4 scorers | 24.3 | 61.1 |