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. 2016 Mar 30;40(5):346–360. doi: 10.1177/0146621616639305

Table 1.

Constraints and Weights for Between-Item and Within-Item Multidimensional Pools.

Between-item pool
Within-item pool
Constraints Weight Lower bound Upper bound Weight Lower bound Upper bound
Dimension 1—Content 1 1 3 5 1 5 9
Dimension 1—Content 2 1 5 7 1 7 13
Dimension 1—Content 3 1 4 6 1 6 11
Dimension 2—Content 1 1 5 8 1 6 14
Dimension 2—Content 2 1 6 9 1 7 16
Answer Key-A 1 5 10 1 5 10
Answer Key-B 1 5 10 1 5 10
Answer Key-C 1 5 10 1 5 10
Answer Key-D 1 5 10 1 5 10
Item exposure control 1 0.2 1 0.2
Fisher information 1 1

Note. The Fisher information constraint refers to the determinant of the Fisher information matrix.