Assessing the validity and reliability of the International Anxiety Questionnaire and the International Depression Questionnaire in two bereaved national samples

IF 3.2 3区心理学 Q1 PSYCHOLOGY, CLINICAL Clinical psychology & psychotherapy Pub Date : 2023-09-29 DOI:10.1002/cpp.2917

Philip Hyland, Enya Redican, Thanos Karatzias, Mark Shevlin

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Abstract

The International Anxiety Questionnaire (IAQ) and International Depression Questionnaire (IDQ) are self-report measures of ICD-11 Generalized Anxiety Disorder (ICD-11 GAD) and ICD-11 Single Episode Depressive Disorder (ICD-11 DD). This study tested the psychometric properties of these scales in two samples of bereaved adults from the United Kingdom and the Republic of Ireland. Confirmatory factor analysis (CFA) was used to test the combined dimensionality and measurement invariance of the IAQ and IDQ across the United Kingdom (n = 1012) and Irish (n = 1011) samples. Differential item functioning (DIF) was tested using multiple indicator multiple cause (MIMIC) modelling while convergent validity was also assessed. CFA results supported a correlated two-factor model in both samples. The MIMIC model showed that the IDQ item “Had recurrent thoughts of death or suicide” showed DIF and the effect was small. Internal reliability of the scales were high and convergent validity was supported. The prevalence of ICD-11 GAD was 18.6% and 16.1% and ICD-11 DD was 13.8% and 10.5% in the United Kingdom and Irish samples, respectively. Findings of the study provide support for the validity, measurement invariance, and reliability of the IAQ and IDQ among two bereaved national samples.

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评估国际焦虑问卷和国际抑郁问卷在两个丧亲国家样本中的有效性和可靠性。

国际焦虑问卷（IAQ）和国际抑郁问卷（IDQ）是ICD-11广泛性焦虑症（ICD-11-GAD）和ICD-11单发作性抑郁障碍（ICD-11DD）的自我报告量表。这项研究在来自英国和爱尔兰共和国的两个丧亲成年人样本中测试了这些量表的心理测量特性。验证性因子分析（CFA）用于测试英国IAQ和IDQ的组合维度和测量不变性（n = 1012）和爱尔兰语（n = 1011）个样本。使用多指标多原因（MIMIC）模型测试差异项目功能（DIF），同时评估收敛有效性。CFA结果支持两个样本中的相关双因素模型。MIMIC模型显示，IDQ项目“有反复的死亡或自杀念头”显示DIF，且影响较小。量表的内部信度较高，并支持收敛有效性。英国和爱尔兰样本中ICD-11 GAD的患病率分别为18.6%和16.1%，ICD-11 DD的患病率为13.8%和10.5%。研究结果为两个丧亲国家样本的IAQ和IDQ的有效性、测量不变性和可靠性提供了支持。

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

Clinical psychology & psychotherapy PSYCHOLOGY, CLINICAL-

CiteScore

6.30

自引率

5.60%

发文量

106

期刊介绍： Clinical Psychology & Psychotherapy aims to keep clinical psychologists and psychotherapists up to date with new developments in their fields. The Journal will provide an integrative impetus both between theory and practice and between different orientations within clinical psychology and psychotherapy. Clinical Psychology & Psychotherapy will be a forum in which practitioners can present their wealth of expertise and innovations in order to make these available to a wider audience. Equally, the Journal will contain reports from researchers who want to address a larger clinical audience with clinically relevant issues and clinically valid research.