Can we trust the internet to measure psychotic symptoms?

IF 3.6 Q1 PSYCHIATRY
Schizophrenia Research and Treatment Pub Date : 2013-01-01 Epub Date: 2013-07-10 DOI:10.1155/2013/457010
Steffen Moritz, Niels Van Quaquebeke, Tania M Lincoln, Ulf Köther, Christina Andreou
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引用次数: 44

Abstract

Online studies are increasingly utilized in applied research. However, lack of external diagnostic verification in many of these investigations is seen as a threat to the reliability of the data. The present study examined the robustness of internet studies on psychosis against simulation. We compared the psychometric properties of the Community Assessment of Psychic Experiences scale (CAPE), a self-report instrument measuring psychotic symptoms, across three independent samples: (1) participants with a confirmed diagnosis of schizophrenia, (2) participants with self-reported schizophrenia who were recruited over the internet, and (3) clinical experts on schizophrenia as well as students who were asked to simulate a person with schizophrenia when completing the CAPE. The CAPE was complemented by a newly developed 4-item psychosis lie scale. Results demonstrate that experts asked to simulate schizophrenia symptoms could be distinguished from real patients: simulators overreported positive symptoms and showed elevated scores on the psychosis lie scale. The present study suggests that simulated answers in online studies on psychosis can be distinguished from authentic responses. Researchers conducting clinical online studies are advised to adopt a number of methodological precautions and to compare the psychometric properties of online studies to established clinical indices to assert the validity of their results.

我们能信任互联网来测量精神病症状吗?
在线学习越来越多地用于应用研究。然而,在许多这些调查中,缺乏外部诊断验证被视为对数据可靠性的威胁。本研究检验了网络研究对模拟精神病的稳健性。我们比较了精神体验社区评估量表(CAPE)的心理测量特性,这是一种测量精神病症状的自我报告工具,跨越三个独立样本:(1)确诊为精神分裂症的参与者,(2)通过互联网招募的自我报告为精神分裂症的参与者,以及(3)精神分裂症临床专家以及在完成CAPE时被要求模拟精神分裂症患者的学生。CAPE辅以新开发的4项精神病谎言量表。结果表明,被要求模拟精神分裂症症状的专家可以与真实患者区分开来:模拟者夸大了阳性症状,并在精神病谎言量表上显示出更高的分数。本研究表明,在线精神病研究中的模拟回答可以与真实回答区分开来。建议进行临床在线研究的研究人员采取一些方法学上的预防措施,并将在线研究的心理测量特性与已建立的临床指标进行比较,以断言其结果的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
4.60
自引率
0.00%
发文量
2
审稿时长
14 weeks
期刊介绍: Schizophrenia Research and Treatment is a peer-reviewed, Open Access journal that publishes original research articles, review articles, and clinical studies related to all aspects of schizophrenia.
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