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The Q3 index is an essential analysis for observing examinees'
behaviour in terms of ``ability'' and ``speed.'' The result of the
index will be used to evaluate if the test is fair for all students
without the level of their abilities. In this section, we will review
an educational application, Q3 - local dependence index, and
will implement and benchmark the application in HPJava.
Q3 - Local Dependence Index