re: Only 13% of workers under 50, could answer 4 of 5 financial literacy questions correctly

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Surely these were the issues ::eyeroll::

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It is. If you ask poor and ambiguous questions, then you can’t draw conclusions about what they were intended to measure, especially with such few items. We can go into a more detailed discussion about psychometrics, and in particular, item response theory, but this test appears be neither valid nor reliable.