This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.
E. G. Carmines & R. A. Zeller (1979). Reliability and Validity Assessment. Sage: Beverley Hills.
A. Coppen & M. Metcalfe (1965). Effect of a depressive illness on MPI scores. British Journal of Psychiatry 111, 236–239.
P. Duncan-Jones , D. A. Grayson & P. A. P. Moran (1986). The utility of latent trait models in psychiatric epidemiology. Psychological Medicine 16, 391–405.
M. E. Goodchild & P. Duncan-Jones (1985). Chronicity and the General Health Questionnaire. British Journal of Psychiatry 146, 55–61.
T. W. Harding , M. V. De Arango , J. Baltazar , C. E. Climent , H. H. A. Ibrahim , L. L. Ignacio , R. S. Murthy & N. N. Wig (1980). Mental disorders and primary health care: a study of their frequency and diagnosis in four developing countries. Psychological Medicine 10, 231–241.
F. A. Huppert , D. E. Walters , N. E. Day & B. J. Elliot (1989). The factor structure of the General Health Questionnaire (GHQ-30): a reliability study on 6317 community residents. British Journal of Psychiatry 155, 178–185.
G. Lewis (1991). Observer bias in the assessment of anxiety and depression. Social Psychiatry and Psychiatric Epidemiology 26, 265–272.
S. Moorey , S. Greer , M. Watson , C. Gorman , L. Rowden , R. Tunmore , B. Robertson & J. Bliss (1991). The factor structure and factor stability of the hospital anxiety and depression scale. British Journal of Psychiatry 158, 255–259.
L. S. Radloff (1977). The CES-D scale: a self-report depression scale for research in the general population. Applied Psychological Measurement 1, 385–401.
R. P. Snaith (1987). The concepts of mild depression. British Journal of Psychiatry 150, 387–393.
C. Stavrakaki & B. Vargo (1986). The relationship of anxiety and depression. A review of the literature. British Journal of Psychiatry 149, 7–16.
D. Watson & A. Tellegen (1985). Toward a consensual structure of mood. Psychological Bulletin 98, 219–235.
A. S. Zigmond & R. P. Snaith (1983). The Hospital Anxiety and Depression Scale. Acta Psychiatrica Scandinavica 67, 361–370.