Criteria Used in the Process of CHSA Item Reduction
Criterion | Source of Data |
---|---|
Low expert review rating (bottom 50%) | Study I |
High ceiling effect (item mean >4.0 on a 5-point scale) | Study II |
Low item–total scale correlation (<.60) | Study II |
Improved scale α coefficient if item deleted | Study II |
Low item covariance (<mean) with majority of other scale items | Study II |