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X Axis |
Y Axis |
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| Variable: |
Education > Assessments > Scale Score, Grade 8 Reading |
Education > Assessments > Scale Score, Grade 8 Science |
| Plot Display: |
Logarithmic (base 10) |
Logarithmic (base 10) |
| Definition: |
For each different subject, NAEP creates a scale score based on statistical procedures called item response theory (IRT). IRT is a set of statistical procedures useful in summarizing student performance across a collection of test exercises requiring similar knowledge and skills. All NAEP subject area scales are produced using these procedures. In Math and Reading, NAEP creates a scale ranging from 0-500. In Science and Writing, NAEP creates a scale ranging from 0-300.
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For each different subject, NAEP creates a scale score based on statistical procedures called item response theory (IRT). IRT is a set of statistical procedures useful in summarizing student performance across a collection of test exercises requiring similar knowledge and skills. All NAEP subject area scales are produced using these procedures. In Math and Reading, NAEP creates a scale ranging from 0-500. In Science and Writing, NAEP creates a scale ranging from 0-300. |
| Source: |
National Center for Educational Statistics
|
National Center for Educational Statistics |
| Correlations: |
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More correlations » |
More correlations » |
