Click on Person-Item Histogram on the Graphs menu:
A standard histogram of the person ability distribution (upper, from PFILE=) and item difficulty distribution (lower, from IFILE=) displays:
Person Measure - Item Difficulty Histogram |
Person Measure - Item Half-Point Thresholds Histogram |
Person Measure - Item Thurstonian Thresholds Histogram |
Person Measure - Item Andrich Thresholds Histogram |
Person Measure - Item Category Peaks (maximum probabilities) Histogram |
Person Measures - Test Measures for All Scores on Complete Test |
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copies both person and item histograms to the Windows clipboard, so that they can be pasted into a Word document or elsewhere.
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copies the upper (person) histogram to the Windows clipboard, so that they can be pasted into a Word document or elsewhere.
The title is shown below the x-axis. |
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copies the lower (item) histogram to the Windows clipboard, so that they can be pasted into a Word document or elsewhere.
The bars are drawn upwards.
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change the top (person) title
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change the upper y-axis (person count) title
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change the lower y-axis (item count) title
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Checked in box: beveled: |
No check in box: no bevel: |
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Check in box: colored: |
No check in box: black and white: |
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Check in box: histogram-format: |
No check in box: bar-chart-format: |
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Redraw charts after changing charts specifications:
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Change lowest displayed value on the x-axis, then click on Redraw button |
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Change the number of bars displayed on the bar chart, then click on Redraw button |
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Change highest displayed value on the x-axis, then click on Redraw button |
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Drag graph larger with lower right corner |
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