Why do respondents makeanswers "Neither agree nor disagree"and/or aberrant responses on a personality test?

在自我报告人格量表中，许多研究开发了许多不同的方法来检测反应偏差，并调查了哪些过程产生了偏差。最近的一种方法是使用基于项目反应理论的个人适应指数。第一项研究，“通过人的匹配检测人格测试中的异常答案”，发现很难检测出假装好的回答者，但通过人的匹配检测假装坏的回答者是有效的。第二个研究“一个人格描述词及其反义词是否意味着一个双极人格维度，另一个词是单极人格维度？“提供了一组撤销项目，以审查默许。而且，它是检查是否人格特质是两极或单极。在代表双极人格特质的项目上，预测具有中等程度人格特质的个体回答“既不同意也不反对”。另一方面，在单极特质上，因为不可能回答“既不同意也不反对”或“中立”，所以回答这个问题的人不具有这种特质。为了证实这些假设，逆转项目池是可用的。最后，研究“通过人格测试逆转项目检查默许”，研究了默许对明尼苏达多相人格调查表（MMPI）中Hy和Pt量表的影响。Bentler，杰克逊，& Messick（1971）之后，通过潜在结构分析评估了协议默认和协议默认的影响。因此，接受默许对量表得分的影响是中等的，而同意默许对量表得分的影响不大。而且，还澄清了与潜在性状的影响相比，这种影响相当小。

On a self-report personality inventory, many researches have developed many different methods to detect a response bias and investigated what processes have generated the bias. One recent method is using the person-fit index based on item response theory. The first study, "Detection of aberrant answers in a personality test through person-fit," found that it was difficult to detect the faking-good respondents, but effective for the faking-bad by person-fit. And, it was recognized the differences in the aberration responses between ability tests and personality tests.The next study "Dose a personality descriptive word with its antonym imply a bipolar personality dimension, another word unipolar one?" provided a pool of reversal items in order to examine acquiescence. And, it is examined whether a personality trait is bipolar or unipolar. On items representing the bipolar personality trait, it is predicted that the individual with moderate degree of the trait answers "neither agree nor disagree." On the other hand, on the unipolar trait, because it is impossible to answer "neither agree nor disagree" or "neutral," the individual who answers this one doesn't have the trait. To confirm these hypotheses, the pool of reversal items is available.Finally, the study "Examination of acquiescence through reversal items on a personality test," examined influences of acquiescence on the Hy and the Pt scale in the Minnesota Multiphasic Personality Inventory (MMPI). After Bentler, Jackson, and ＆ Messick (1971), influences of agreement acquiescence and agreement acquiescence were evaluated through the latent structure analysis. So, acceptance acquiescence influenced the scale scores moderately, but agreement acquiescence had few influences. And, it was clarified also that the influence was considerably small compared with the influence by a latent trait.