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Psychometric properties of the Depressive Symptom Index-Suicidality Subscale (DSI-SS) in an adult psychiatric sample.
Psychological Assessment ( IF 6.083 ) Pub Date : 2021-06-28 , DOI: 10.1037/pas0001043
Ian H Stanley 1 , Melanie A Hom 2 , Kirsten Christensen 3 , Terence M Keane 1 , Brian P Marx 1 , Thröstur Björgvinsson 2
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The Depressive Symptom Index-Suicidality Subscale (DSI-SS) is a four-item self-report measure of suicidal ideation severity widely used across research and clinical contexts. However, the psychometric properties of the English-language version of the DSI-SS have not been extensively examined within a psychiatric sample, and important properties of this scale (e.g., sensitivity to change) have yet to be examined. Within a sample of 448 adult psychiatric patients enrolled in a partial hospital program (PHP), we examined several measurement properties of the DSI-SS, including its factor structure, internal consistency, validity, and sensitivity to change, as well as the presence of differential item functioning (DIF). Confirmatory factor analysis that specified a one-factor model indicated that the DSI-SS had good model fit. DSI-SS scores demonstrated good internal consistency, ω = .90 [95% CI = .89-.91], convergent validity (rs = .52-.74), discriminant validity (rs = .12-.27), and sensitivity to change. None of the four DSI-SS items evinced statistically significant DIF across age, gender, sexual orientation, or PHP referral source (i.e., outpatient step-up vs. inpatient step-down). These findings suggest that the DSI-SS is a psychometrically sound self-report measure that can be used in real-world clinical settings and research contexts to reliably and validly assess suicidal ideation severity. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

中文翻译:

成人精神病样本中抑郁症状指数-自杀分量表 (DSI-SS) 的心理测量特性。

抑郁症状指数 - 自杀分量表 (DSI-SS) 是一个四项自我报告的自杀意念严重程度的衡量标准,广泛用于研究和临床背景。然而,英语版 DSI-SS 的心理测量特性尚未在精神病样本中得到广泛检查,该量表的重要特性(例如,对变化的敏感性)尚未得到检查。在参加部分医院计划 (PHP) 的 448 名成年精神病患者的样本中,我们检查了 DSI-SS 的几个测量属性,包括其因子结构、内部一致性、有效性和对变化的敏感性,以及差异项目功能(DIF)。指定单因素模型的验证性因素分析表明 DSI-SS 具有良好的模型拟合。DSI-SS 分数表现出良好的内部一致性,ω = .90 [95% CI = .89-.91],收敛效度 (rs = .52-.74),区分效度 (rs = .12-.27),以及对变化的敏感性。四个 DSI-SS 项目中没有一个在年龄、性别、性取向或 PHP 转诊来源(即,门诊升级与住院降级)方面表现出具有统计学意义的 DIF。这些发现表明,DSI-SS 是一种心理测量学上合理的自我报告测量方法,可用于现实世界的临床环境和研究环境,以可靠和有效地评估自杀意念的严重程度。(PsycInfo 数据库记录 (c) 2021 APA,保留所有权利)。四个 DSI-SS 项目中没有一个在年龄、性别、性取向或 PHP 转诊来源(即,门诊升级与住院降级)方面表现出具有统计学意义的 DIF。这些发现表明,DSI-SS 是一种心理测量学上合理的自我报告测量方法,可用于现实世界的临床环境和研究环境,以可靠和有效地评估自杀意念的严重程度。(PsycInfo 数据库记录 (c) 2021 APA,保留所有权利)。四个 DSI-SS 项目中没有一个在年龄、性别、性取向或 PHP 转诊来源(即,门诊升级与住院降级)方面表现出具有统计学意义的 DIF。这些发现表明,DSI-SS 是一种心理测量学上合理的自我报告测量方法,可用于现实世界的临床环境和研究环境,以可靠和有效地评估自杀意念的严重程度。(PsycInfo 数据库记录 (c) 2021 APA,保留所有权利)。
更新日期:2021-06-28
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