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Table 5 Correlations between dimensions in five-dimensional 3PL/GPCM for math grade 8 data

From: Assessment of fit of item response theory models used in large-scale educational survey assessments

  2 3 4 5
1. Number properties and operations .97 .93 .96 .95
2. Measurement .96 .96 .94
3. Geometry   .93 .92
4. Data analysis and probability    .94
5. Algebra