作者
Mark Shevlin, Sarah Butter, Orla McBride, Jamie Murphy, Jilly Gibson-Miller, Todd K Hartman, Liat Levita, Liam Mason, Anton P Martinez, Ryan McKay, Thomas VA Stocks, Kate M Bennett, Philip Hyland, Frédérique Vallieres, Carmen Valiente, Carmelo Vazquez, Alba Contreras, Vanesa Peinado, Almudena Trucharte, Marco Bertamini, Anna Panzeri, Giovanni Bruno, Umberto Granziol, Giuseppe Mignemi, Andrea Spoto, Giulio Vidotto, Richard P Bentall
发表日期
2022/3/1
期刊
BMC psychiatry
卷号
22
期号
1
页码范围
154
出版商
BioMed Central
简介
Background
The Patient Health Questionnaire (PHQ-9) and Generalized Anxiety Disorder scale (GAD-7) are self-report measures of major depressive disorder and generalised anxiety disorder. The primary aim of this study was to test for differential item functioning (DIF) on the PHQ-9 and GAD-7 items based on age, sex (males and females), and country.
Method
Data from nationally representative surveys in UK, Ireland, Spain, and Italy (combined N = 6,054) were used to fit confirmatory factor analytic and multiple-indictor multiple-causes models.
Results
Spain and Italy had higher latent variable means than the UK and Ireland for both anxiety and depression, but there was no evidence for differential items functioning.
Conclusions
The PHQ-9 and GAD-7 scores were found to be unidimensional, reliable, and largely free of DIF in data from four large nationally representative samples of the general population in the UK …
学术搜索中的文章
M Shevlin, S Butter, O McBride, J Murphy… - BMC psychiatry, 2022