44 lines
994 B
Markdown
44 lines
994 B
Markdown
---
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name: item-analysis-tool
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description: Performs statistical analysis on assessment items including difficulty, discrimination, and distractor effectiveness.
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---
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# item-analysis-tool
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## Capabilities
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- Calculate item difficulty indices
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- Calculate point-biserial discrimination
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- Analyze distractor performance
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- Flag problematic items
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## Usage
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Use this skill when:
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- Analyzing pilot test data
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- Reviewing item performance after administration
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- Improving assessment quality
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## Input
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Item response data (learner responses with correct/incorrect indicators).
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## Output
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Item analysis report with:
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- Difficulty index (p-value) for each item
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- Discrimination index for each item
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- Distractor analysis
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- Items flagged for review
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## Limitations
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- Requires response data from actual administration
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- Statistical validity depends on sample size
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- Does not assess content validity
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## Assumptions
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- Response data is complete and accurate
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- Minimum sample size of 30 for reliable statistics
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