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. 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. RESULTS: A single scale consisting of 12 of 14 HADS items was revealed, indicating a unidimensional latent HADS structure. 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. Copyright Â
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. 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. RESULTS: A single scale consisting of 12 of 14 HADS items was revealed, indicating a unidimensional latent HADS structure. 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. Copyright Â
Authors: Roger Watson; Wenru Wang; David L Hare; Chantal F Ski; David R Thompson Journal: Health Qual Life Outcomes Date: 2012-03-27 Impact factor: 3.186
Authors: María Ángeles Bernal-Jiménez; Germán Calle-Pérez; Alejandro Gutiérrez-Barrios; Livia Gheorghe; Ana María Solano-Mulero; Amelia Rodríguez-Martín; Josep A Tur; Rafael Vázquez-García; María José Santi-Cano Journal: Nutrients Date: 2021-05-27 Impact factor: 5.717
Authors: Martin Nikolaus Dichter; Olga Dortmann; Margareta Halek; Gabriele Meyer; Daniela Holle; Johanna Nordheim; Sabine Bartholomeyczik Journal: Health Qual Life Outcomes Date: 2013-06-05 Impact factor: 3.186