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Jul 7, 2018 at 6:27 comment added Dirk +1 For the last sentence! I would go as far and say that fairness is even a feeling.
Jul 5, 2018 at 20:22 history edited JWH2006 CC BY-SA 4.0
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Jul 5, 2018 at 20:03 comment added Solar Mike @Udank 85 or 90 out of 500 no sorry 100 most likely....
Jul 5, 2018 at 19:58 comment added Udank Could you explain what "85" and "90" mean?
Jul 5, 2018 at 19:15 comment added JWH2006 I believe you are discussing item response theory. I think its item discrimination but could also be very wrong as IRT is one of my weaker statistical areas.
Jul 5, 2018 at 19:11 comment added Buffy WRT point 3, note that there is a statistical measure (whose name escapes me) that measures for each question how students do compared to the overall score. In particular, if a question is marked incorrectly by high performing test takers overall, the question is probably invalid. Maybe a statistician out there can supply the name. It was a standard feature of machine graded tests.
Jul 5, 2018 at 18:59 history answered JWH2006 CC BY-SA 4.0