Item analysis: difficulty & discrimination
This lesson is part of the course
In this lesson
You analyse a 10-question test: how hard each question was (p), whether it separates strong from weak students (D), and which questions need a second look.
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Lessons in this course
- A weighted gradebook with SUMPRODUCT Locked
- Dropping the lowest score Locked
- Letter grades with an approximate-match lookup Locked
- Class statistics: mean, median, spread & pass rate Locked
- Curving scores: bonus, scaling & z-scores Locked
- Attendance tracking & at-risk flags Locked
- Progress over terms: growth & rankings Locked
- Item analysis: difficulty & discrimination Locked