| http://www.w3.org/ns/prov#value | - Main findings from the study were as follows: (1) increasing the discriminating power of any types of items generally increased the level of information; however, sometimes it could bring adverse effect to the extreme ends of the ability continuum; (2) it was important to have more items that were targeted at the population of interest, otherwise, no matter how good the quality of the items may be
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