IEEE International Conference on Teaching, Assessment, and Learning
for Engineering 2014 (TALE 2014), 6B_1,
pp.1-6, December 8-10,
2014, Te Papa Tongarewa National Museum of New Zealand, Wellington,
New Zealand
Abstract
The
item response theory (IRT) provides us not only the abilities of
examinees but also the difficulties of items. Adaptive testing
using the IRT selects the most appropriate items to examinees automatically,
resulting in more accurate ability estimation and more efficient
test procedures than the conventional testing. However, the item
parameters remain constants even if the features of the examinees
change. To overcome this situation, we use the dually adaptive
online IRT testing system, where gdually adaptiveh means that one
is targeted to the adequate item selection and the other is targeted
to the adjustment of the difficulty values for items. We have applied
this method to the high-school mathematics testing case, and we
have found that the system works well.