Dao Tam K, Prevatt Frances
Department of Educational Psychology and Learning Systems, Florida State University, Tallahassee, FL 32306, USA.
J Pers Assess. 2006 Apr;86(2):180-9. doi: 10.1207/s15327752jpa8602_07.
In this study, we investigated evidence for reliability and validity of the Perceptual Thinking Index (PTI; Exner, 2000a, 2000b) among an adult inpatient population. We conducted reliability and validity analyses on 107 patients who met the Diagnostic and Statistical Manual of Mental Disorders (4th ed., text revision; American Psychiatric Association, 2000) criteria for a schizophrenia-spectrum disorder (SSD) or mood disorder with no psychotic features (MD). Results provided support for interrater reliability as well as internal consistency of the PTI. Furthermore, the PTI was an effective index in differentiating SSD patients from patients diagnosed with an MD. Finally, the PTI demonstrated adequate diagnostic statistics that can be useful in the classification of patients diagnosed with SSD and MD. We discuss methodological issues, implications for assessment practice, and directions for future research.
在本研究中，我们调查了知觉思维指数（PTI；Exner，2000a，2000b）在成年住院患者群体中的信度和效度证据。我们对107名符合《精神疾病诊断与统计手册》（第4版，文本修订版；美国精神病学协会，2000）中精神分裂症谱系障碍（SSD）或无精神病性特征的心境障碍（MD）标准的患者进行了信度和效度分析。结果为PTI的评分者间信度以及内部一致性提供了支持。此外，PTI是区分SSD患者与诊断为MD的患者的有效指标。最后，PTI显示出足够的诊断统计量，可用于诊断为SSD和MD的患者分类。我们讨论了方法学问题、对评估实践的影响以及未来研究的方向。
