目的探讨项目反应理论在医学量表测量误差估计中的应用。
Objective To implore the application of Item Responses Theory in estimating the measurement error of medical scales.
结果表明：SD虽然未破坏人格因素结构，但它却往不同动机组的人格测量中加入不相等的系统误差，并且影响了人格量表的得分。
Results were that SD didn't affect the factor structure, but it influenced scale score, and the size of system error that was produced by SD was different between two groups.
结果表明：SD虽然未破坏人格因素结构，但它却往不同动机组的人格测量中加入不相等的系统误差，并且影响了人格量表的得分。
Results were that SD didn't affect the factor structure, but it influenced scale score, and the size of system error that was produced by SD was different between two groups.
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