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A short form of the Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE): development and cross-validation

  • A. F. Jorm (a1)
  • DOI:
  • Published online: 01 July 2009

Data from four studies were used to assess the psychometric properties of the 26 IQCODE items. The items were assessed in terms of item–total correlations, test–retest reliabilities, correlations with indicators of current cognitive functioning and correlations with indicators of pre-morbid cognitive functioning. These data were used to develop a 16-item short form. The short form was cross-validated in a new sample using dementia/delirium diagnosis as the validity standard. It was found to perform as well as the long form.

Corresponding author
1Address for correspondence: Dr A. F. Jorm, NH&MRC Social Psychiatry Research Unit, The Australian National University, Canberra, ACT 0200, Australia.
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D. Goldberg , K. Bridges , P. Duncan-Jones & D. Grayson (1988). Detecting anxiety and depression in general medical settings. British Medical Journal 297, 897899.

J. A. Hanley & B. J. McNeil (1982). The meaning and use of the area under a receiver operating characteristic (ROC) curve. Radiology 143, 2936.

J. A. Hanley & B. J. McNeil (1983). A method of comparing the areas under receiver operating characteristic curves derived from the same cases. Radiology 148, 839843.

A. F. Jorm (1992). Use of informants' reports to study memory changes in dementia. In Memory Functioning in Dementia (ed. L. Bäckman ), pp. 267282. Elsevier: Amsterdam.

A. F. Jorm , R. Scott & P. A. Jacomb (1989). Assessment of cognitive decline in dementia by informant questionnaire. International Journal of Geriatric Psychiatry 4, 3539.

A. Mackinnon , H. Christensen , J. S. Cullen , C. J. Doyle , A. S. Henderson , A. F. Jorm , A. E. Korten & L. R. Scott (1993). The Canberra Interview for the Elderly: Assessment of its validity in the diagnosis of dementia and depression. Acta Psychiatrica Scandinavica 87, 146151.

Social Psychiatry Research Unit (1992). The Canberra Interview for the Elderly (CIE): A new field instrument for the diagnosis of dementia and depression by ICD-10 and DSM-III-R. Acta Psychiatrica Scandinavica 85, 105113.

H. Weingartner , R. M. Cohen , D. L. Murphy , J. Mastello & C. Gerdt (1981). Cognitive processes in depression. Archives of General Psychiatry 38, 4247.

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