TY - JOUR
T1 - Mokken scaling analysis of the Hospital Anxiety and Depression Scale in individuals with cardiovascular disease
AU - Cosco, Theodore D.
AU - Doyle, Frank
AU - Watson, Roger
AU - Ward, Mark
AU - McGee, Hannah
PY - 2012
Y1 - 2012
N2 - 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.
AB - 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.
KW - anxiety
KW - cardiovascular system
KW - depression
KW - item response theory
KW - psychometrics
UR - http://handle.uws.edu.au:8081/1959.7/517511
U2 - 10.1016/j.genhosppsych.2011.11.005
DO - 10.1016/j.genhosppsych.2011.11.005
M3 - Article
SN - 1873-7714
SN - 0163-8343
VL - 34
SP - 167
EP - 172
JO - General Hospital Psychiatry
JF - General Hospital Psychiatry
IS - 2
ER -