A hierarchy of distress and invariant item ordering in the General Health Questionnaire-12

Doyle, Frank; Watson, Roger; Morgan, Kàren; McBride, Orla

doi:10.1016/j.jad.2011.10.022

Cited by 14 publications

(11 citation statements)

References 17 publications

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“…Unlike the other studies, in the study of Gouveia ( 49 ) only one factor had the best fit, and the structure showed a reliability greater than 0.80 in all study groups. Doyle ( 50 ), Aguado ( 51 ) and Hankins ( 18 ) also reported one factor extracted in their studies that had the best fit. However, one can attribute these differences to different methods of statistical analysis, scoring, populations with different ages, different sample sizes, different ways of answering the questions by samples, and finally, different ways of interpreting the responses.…”

Section: Discussionmentioning

confidence: 93%

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Factor Structure of the Iranian Version of 12-Item General Health Questionnaire

Rahmati-Najarkolaei¹,

Raiisi²,

Rahnama³

et al. 2014

Iran Red Crescent Med J

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Background:The 12-Item General Health (GHQ-12) questionnaire is one of the most commonly used instruments in screening studies on mental health.Objectives:The current study aimed to examine the factor structure of the GHQ-12 questionnaire among the students in Iran.Materials and Methods:It was a cross-sectional study in which 428 university students were recruited and completed the GHQ-12. Reliability of the GHQ-12 was evaluated using the Cronbach's alpha and the split-half method by applying the Spearman-Brown coefficient. Factor structure of the questionnaire was extracted by exploratory factor analysis (EFA). Confirmatory factor analysis (CFA) was conducted to assess how well the EFA extracted model fitted the observed data.Results:The mean age of the participants was 22.83 years (SD = 3.09). Most of them were female (56.1%) and 81% were unemployed. The Cronbach’s alpha coefficient for the Iranian version of GHQ-12 was 0.85. Using the split-half method, the alpha for the social dysfunction was found to be 0.77; it was 0.76 for the psychological distress. The principal component analysis revealed a two-factor structure for the questionnaire including social dysfunction and psychological distress that explained 48% of the observed variances. The confirmatory factor analysis was showed fit for the data.Conclusions:The current study findings confirm that the Iranian version of GHQ-12 has a good factor structure and is a reliable and valid instrument to measure psychological distress and social dysfunction.

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Section: Discussionmentioning

confidence: 93%

“…Still, even when three factors were reported, the close relationship among these factors was evident. It has been even mentioned that the elderly are more at risk of minor mental disorders and depression; ( 50 ) hence, the age difference can also influence the analyses.…”

Section: Discussionmentioning

confidence: 99%

Factor Structure of the Iranian Version of 12-Item General Health Questionnaire

Rahmati-Najarkolaei¹,

Raiisi²,

Rahnama³

et al. 2014

Iran Red Crescent Med J

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“…Furthermore, a systematic review of the case-finding ability of the HADS indicates that the HADS is a useful tool in the identification of non-psychiatric patients with emotional distress; however, concern for the ability to distinguish between emotional disorders is also voiced (9). For clinicians, cognizance of the structure of the HADS can enhance the ability to swiftly assess symptom severity, given the inherent hierarchical structure of psychiatric morbidity, (10).The marked overlap between symptoms of anxiety and depression in the context of the HADS items highlights the need for further investigation into the ability of the HADS to accurately differentiate between anxiety and depression.…”

Section: Introductionmentioning

confidence: 99%

Mokken scaling analysis of the Hospital Anxiety and Depression Scale in individuals with cardiovascular disease

Cosco

Doyle

Watson

et al. 2012

General Hospital Psychiatry

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“…IIO refers to items that have the same “difficulty ordering” irrespective of the value of the latent trait. 23 – 25 The ordering of items is based on item difficulty and shows whether items are difficult (rare) or less difficult (common). IIO is therefore important in order to establish a scale hierarchy that is replicable across samples.…”

Section: Methodsmentioning

confidence: 99%

Construct validity of the Depression and Somatic Symptoms Scale: evaluation by Mokken scale analysis

Chou¹,

Lee²,

Liu³

et al. 2017

NDT

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ObjectivePrevious studies of the Depression and Somatic Symptoms Scale (DSSS), a free scale, have been based on the classical test theory, and the construct validity and dimensionality of the DSSS are as yet uncertain. The aim of this study was to use Mokken scale analysis (MSA) to assess the dimensionality of the DSSS.MethodsA sample of 214 psychiatric outpatients with mood and anxiety disorders were enrolled at a medical center in Taiwan (age: mean [SD] =38.3 [10.5] years; 63.1% female) and asked to complete the DSSS. MSA was used to assess the dimensionality of the DSSS.ResultsAll 22 items of the DSSS formed a moderate unidimensional scale (Hs=0.403), supporting its construct validity. The DSSS was divided into 4 subscales (Hs ranged from 0.35 to 0.67), including a general somatic scale (GSS), melancholic scale (MS), muscular pain scale (MPS), and chest symptom scale (CSS). The GSS is a weak reliable Mokken scale; the other 3 scales are strong reliable Mokken scales.ConclusionThe DSSS is a psychometrically sound measure of depression and somatic symptoms in adult psychiatric outpatients with depression or anxiety. The summed score of the DSSS and its 4 subscales are valid statistics. Further research is required for replication of the 4 subscales of the DSSS.

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A hierarchy of distress and invariant item ordering in the General Health Questionnaire-12

Cited by 14 publications

References 17 publications

Factor Structure of the Iranian Version of 12-Item General Health Questionnaire

Factor Structure of the Iranian Version of 12-Item General Health Questionnaire

Mokken scaling analysis of the Hospital Anxiety and Depression Scale in individuals with cardiovascular disease

Construct validity of the Depression and Somatic Symptoms Scale: evaluation by Mokken scale analysis

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