Abstract：
In this study, we explored the temporal stability of the Personality Assessment Inventory (PAI), which has not been comprehensively reexamined since it was first published. Our three specific aims were to determine the utility of PAI indicators of basic protocol validity (inconsistent responses [ICN] and highly unusual/unlikely responses [INF]) in identifying suspect responding; calculate the stability coefficients for each PAI scale and subscale across 3-, 6-, and 9-week spans; and explore whether profile stability across four measurements could be prospectively predicted. We administered the PAI to a sample of undergraduates (N = 579) at four separate timepoints. ICN and INF effectively identified likely attriters and inconsistent responders. All PAI full scales and subscales evidenced good test-retest reliability, with some small exceptions. Finally, all PAI clinical scales were correlated with profile instability although many of these correlations were no longer significant when controlling for mean clinical elevation of the profile. We interpreted these results as evidence for the utility of PAI validity scales, the temporal reliability of the PAI, and the role of psychopathology in response variability over time. We also discussed some preliminary evidence that this variability can be prospectively predicted, suggesting that it in part reflects substantive changes rather than random error variance.
摘要：
在这项研究中,我们探索了人格评估量表(PAI)的时间稳定性，自首次出版以来，尚未进行全面的重新审查。我们的三个具体目标是确定基本协议有效性的PAI指标（不一致响应[ICN]和极不寻常/不太可能的响应[INF]）在识别可疑响应中的效用；计算每个PAI量表和子量表的稳定性系数，6-，和9周的跨度；并探索是否可以前瞻性地预测四次测量的剖面稳定性。我们在四个单独的时间点向本科生样本(N=579)施用PAI。ICN和INF有效地识别了可能的attriters和不一致的响应者。所有PAI全量表和子量表都证明了良好的重测可靠性，除了一些小的例外。最后,所有PAI临床量表均与轮廓不稳定相关,但其中许多相关性在控制轮廓的平均临床升高时不再显著.我们将这些结果解释为PAI效度量表效用的证据，PAI的时间可靠性，以及精神病理学在一段时间内反应变异性中的作用。我们还讨论了一些初步证据，表明这种变异性可以前瞻性地预测，这表明它部分反映了实质性的变化，而不是随机误差方差。
