Psychometric Evaluation of the Insomnia Severity Index in Nurses.

IF 2.2 3区医学 Q3 CLINICAL NEUROLOGY

Behavioral Sleep Medicine Pub Date : 2024-09-01 Epub Date: 2024-06-13 DOI:10.1080/15402002.2024.2362370

Samantha M Nagy, Sarah E Emert, Jacqueline J Leete, Daniel J Taylor, Jessica R Dietch, Danica C Slavish, Camilo J Ruggero, Kimberly Kelly

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引用次数: 0

Abstract

Objectives: Examine psychometric properties of the Insomnia Severity Index (ISI) in a sample of nurses.

Method: In a sample of day shift nurses (N = 289), a confirmatory factor analysis (CFA), convergent and discriminant validity analyses, and a test-retest reliability analysis were performed.

Results: CFA showed that a two-factor model provided the best fit. The ISI had moderate to poor convergent validity with sleep diary parameters, and moderate convergent validity with the Sleep Condition Indicator (r = -.66), Pittsburgh Sleep Quality Index (r = .66), and PROMIS Sleep-Related Impairment measure (r = .67). The ISI demonstrated good discriminant validity with the measures Composite Scale of Morningness (r = -.27), Nightmares Disorder Index (r = .25), PTSD Checklist for DSM-5 (sleep items removed; r = .32), and Perceived Stress Scale (r = .43). The ISI had weaker discriminant validity with the PHQ-9 (r = .69) and Generalized Anxiety Disorder Screener (r = .51). The ISI demonstrated a good test-retest reliability (ICCs = .74-.88).

Conclusions: The ISI is a psychometrically strong measure for the assessment of insomnia severity in day shift nurses. Overlap with psychological symptoms, primarily anxiety and depression, suggests caution while interpreting these constructs.

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护士失眠严重程度指数的心理计量学评估。

目的：研究失眠严重程度指数（ISI）在护士样本中的心理测量特性：在护士样本中研究失眠严重程度指数（ISI）的心理计量特性：方法：以日班护士（289 人）为样本，进行确认性因子分析（CFA）、收敛性和区分性有效性分析以及测试-再测试可靠性分析：CFA显示，双因素模型的拟合效果最佳。ISI 与睡眠日记参数的收敛效度为中度至低度，与睡眠状况指标（r = -.66）、匹兹堡睡眠质量指数（r = .66）和 PROMIS 睡眠相关损害测量（r = .67）的收敛效度为中度。ISI 与晨起综合量表（r = -.27）、噩梦障碍指数（r = .25）、DSM-5创伤后应激障碍检查表（去除睡眠项目；r = .32）和感知压力量表（r = .43）的判别效度良好。ISI 与 PHQ-9（r = 0.69）和广泛焦虑症筛查（r = 0.51）的判别效度较弱。ISI 具有良好的测试-再测试可靠性（ICCs = .74-.88）：结论：ISI 是评估白班护士失眠严重程度的一种心理测量方法。与心理症状（主要是焦虑和抑郁）的重叠表明在解释这些结构时需要谨慎。

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

Behavioral Sleep Medicine CLINICAL NEUROLOGY-PSYCHIATRY

CiteScore

7.20

自引率

3.20%

发文量

审稿时长

>12 weeks

期刊介绍： Behavioral Sleep Medicine addresses behavioral dimensions of normal and abnormal sleep mechanisms and the prevention, assessment, and treatment of sleep disorders and associated behavioral and emotional problems. Standards for interventions acceptable to this journal are guided by established principles of behavior change. Intending to serve as the intellectual home for the application of behavioral/cognitive science to the study of normal and disordered sleep, the journal paints a broad stroke across the behavioral sleep medicine landscape. Its content includes scholarly investigation of such areas as normal sleep experience, insomnia, the relation of daytime functioning to sleep, parasomnias, circadian rhythm disorders, treatment adherence, pediatrics, and geriatrics. Multidisciplinary approaches are particularly welcome. The journal’ domain encompasses human basic, applied, and clinical outcome research. Behavioral Sleep Medicine also embraces methodological diversity, spanning innovative case studies, quasi-experimentation, randomized trials, epidemiology, and critical reviews.