Measurement of delusional ideation in the normal population: Introducing the PDI (Peters et al. Delusions Inventory)
Measurement of delusional ideation in the normal population: Introducing the PDI (Peters et al. Delusions Inventory)
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DOI：
10.1093/oxfordjournals.schbul.a033401
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发表时间：
1999-01-01
影响因子：
6.6
通讯作者：
Garety, PA
中科院分区：
文献类型：
--
作者：
Peters, ER;Joseph, SA;Garety, PA
彼得斯等人。妄想量表(PDI)是以当前状态测验为模板设计的，用于测量正常人群的妄想。通过评估痛苦、全神贯注和信念的测量，将妄想的多维性纳入其中。平均而言，每四个成年人中就有一个人对个别项目表示支持。未发现性别差异，且与年龄呈负相关。结果表明，该量表具有良好的内部一致性，并通过测量分裂型、幻想性和幻想性的三个量表的共同变异率来验证其同时效度。PDI得分在1年后保持一致，建立了其重测可靠性。住院精神病患者的得分显著高于对照组，建立了其效标效度。正常组和妄想组之间的得分范围有相当大的重叠，这与精神病的连续性观点一致。这两个样本通过他们在苦恼、专注和定罪量表上的评分来区分，证实了对妄想思维进行多维分析的必要性。强调了使用该量表进行研究的可能途径及其临床应用。
The Peters et al. Delusions Inventory (PDI) was designed to measure delusional ideation in the normal population, using the Present State Examination as a template. The multidimensionality of delusions was incorporated by assessing measures of distress, preoccupation, and conviction. Individual items were endorsed by one in four adults on average. No sex differences were found, and an inverse relationship with age was obtained. Good internal consistency was found, and its concurrent validity was confirmed by the percentages of common variance with three scales measuring schizotypy, magical ideation, and delusions. PDI scores up to 1 year later remained consistent, establishing its test-retest reliability. Psychotic inpatients had significantly higher scores, establishing its criterion validity. The ranges of scores between the normal and deluded groups overlapped considerably, consistent with the continuity view of psychosis. The two samples were differentiated by their ratings on the distress, preoccupation, and conviction scales, confirming the necessity for a multidimensional analysis of delusional thinking. Possible avenues of research using this scale and its clinical utility are highlighted.