Solve the following problem on your own: calculate the item difficulty and item discrimination.
Your class takes a writing test where the scores are distributed on a scale of 1 to 5. 1 = lowest, 5 = highest. Here are the students and their Item Analysis for Constructed-Response Items to calculate: (Top Group is top 3 scores, Bottom Group is bottom 3 scores)
Once you have completed the analysis, construct a brief 2-3 page paper OR a 5-7 minute podcast/audio recording in APA format (2-3 page requirement does not include your title page or reference page) and address the following:
- Describe and discuss the importance of item difficulty and item discrimination index. As a classroom teacher, what do these indexes mean to you?
- Analyze whether you think this was a good test in terms of these results.
- Identify questions or comments this raises for assessments used in your classroom (this also includes assessments required by the state that are administered in your classroom)
