Quiz Statistics Sort

Adds click-to-sort functionality to quiz statistics, allowing teachers to instantly identify the most difficult questions by Facility Index. Essential for data-driven teaching and quickly spotting student misconceptions.
Full Description for Moodle.org Submission
Quiz Statistics Sort – Enhanced Quiz Analysis for Educators
What it does
Quiz Statistics Sort is a lightweight local plugin that enhances Moodle’s built-in Quiz Statistics report by adding interactive sorting capabilities to the “Quiz structure analysis” table. It allows teachers to sort quiz questions by their Facility Index with a simple click, making it dramatically easier to identify which questions students found most challenging.
The plugin adds a clickable header to the Facility Index column that cycles through three sorting states:
Ascending (▲) : Displays questions from lowest to highest facility index, showing the most difficult questions first
Descending (▼) : Displays questions from highest to lowest facility index, showing the easiest questions first
Unsorted (↕) : Restores the original question order as they appear in the quiz
By default, the table automatically sorts in ascending order (most difficult first) when the statistics page loads, immediately highlighting problem areas.
Why you need it
As an educator using Moodle quizzes daily in the classroom, identifying student misconceptions is critical for effective teaching. The default Quiz Statistics report displays questions in their original quiz order, which means teachers must manually scan through the entire table to find questions with low facility indices.
Common teaching scenarios where this plugin helps:
Post-quiz review : Quickly identify which concepts students struggled with most to inform your next lesson
Curriculum adjustment : See patterns in difficulty across multiple quizzes to refine your teaching approach
Question bank improvement : Easily spot questions that may be poorly worded or too difficult
Formative assessment : Use the sorted data to provide targeted intervention for struggling students
Standards alignment : Verify that question difficulty aligns with your learning objectives
Time savings : Instead of manually reviewing dozens of questions to find the 3-4 that need attention, teachers can instantly see problematic questions at the top of the list.
Pedagogical benefit : The Facility Index is one of the most important metrics for understanding question difficulty and student comprehension. Making this data easily sortable transforms it from a passive statistic into an actionable teaching tool.