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

作者：Cosco Theodore D^*; Doyle Frank; Watson Roger; Ward Mark; McGee Hannah

来源：General Hospital Psychiatry, 2012, 34(2): 167-172.

DOI：10.1016/j.genhosppsych.2011.11.005

• Latent structure
• Mokken scaling
• Item response theory
• Psychometric validation
• Depression
• Anxiety
• Cardiovascular disease

Objective: The Hospital Anxiety and Depression Scale (HADS) is a prolifically used scale of anxiety and depression. The original bidimensional anxiety-depression latent structure of the HADS has come under significant scrutiny, with previous studies revealing one-, two-, three- and four-dimensional structures. The current study examines the latent structure of the HADS using a non-parametric item response theory method. %26lt;br%26gt;Method: Using data conglomerated from four independent studies of cardiovascular disease employing the HADS (n=893), Mokken scaling procedure was conducted to assess the latent structure of the HADS. %26lt;br%26gt;Results: A single scale consisting of 12 of 14 HADS items was revealed, indicating a unidimensional latent HADS structure. %26lt;br%26gt;Discussion: The HADS was initially intended to measure mutually exclusive levels of anxiety and depression; however, the current study indicates that a single dimension of general psychological distress is captured.

• 出版日期2012-4