In Item Response Theory Analyses, the Item Characteristic Called Discrimination

Multiple Choice

In item response theory analyses, the item characteristic called discrimination represents

A) the level of ability at which a test taker has a 50% likelihood of endorsing the item.
B) the extent to which scores on the measure are biased against minority group respondents.
C) how well an item distinguishes between people who are high and low on the trait being assessed.
D) the structural validity of the measure.