Burke Holly McClain, Fleming Paul J, Guest Greg
AIDS Educ Prev. 2014 Dec;26(6):577-87. doi: 10.1521/aeap.2014.26.6.577.
HIV knowledge is commonly measured in HIV prevention research and program evaluations, but rigorous measurement standards are not always applied. Using item response theory methods, we examined the psychometric functioning of five commonly used HIV knowledge questions in five countries with varying HIV prevalence. We evaluated the internal consistency and measurement invariance of the items. The items performed poorly in all samples and the scale as a whole did not perform equally across samples. We conclude that current ways of measuring HIV knowledge are not adequate and recommend new items be developed, tested, and validated using psychometric methods.
在艾滋病病毒（HIV）预防研究和项目评估中，HIV知识通常会被测量，但并不总是采用严格的测量标准。我们运用项目反应理论方法，在五个HIV流行程度各异的国家，考察了五个常用HIV知识问题的心理测量功能。我们评估了这些问题的内部一致性和测量不变性。这些问题在所有样本中表现不佳，并且整个量表在不同样本中的表现也不尽相同。我们得出结论，当前测量HIV知识的方法并不充分，并建议使用心理测量方法开发、测试和验证新的问题。
