Test Item Analysis Calculator
Introduction & Importance
Test item analysis is a crucial process in education and assessment, helping to evaluate the effectiveness and difficulty of test items…
How to Use This Calculator
- Enter the number of items in the test.
- Enter the total possible score for the test.
- Enter the number of correct answers the test-taker achieved.
- Click ‘Calculate’ to see the results and visualization.
Formula & Methodology
The test item analysis calculator uses the following formulas to calculate item difficulty and discrimination…
Real-World Examples
| Test | Number of Items | Total Possible Score | Correct Answers | Item Difficulty | Item Discrimination |
|---|
Data & Statistics
| Statistic | Value |
|---|
Expert Tips
- Always ensure your test items are well-aligned with the learning objectives.
- Regularly review and update your test items to maintain their validity and reliability.
Interactive FAQ
What is item difficulty?
Item difficulty refers to the proportion of test-takers who answered an item correctly…
Standards for Educational and Psychological Testing is an authoritative guide on test development and validation.
National Center for Education Statistics provides valuable data on testing and assessment.