Abstract:
:Formal assessment of cognitive decline with cognitive tests can be difficult, requiring either two measurement points or a comparison of 'hold' with 'don't hold' tests. Informant-based assessment provides an alternative approach because informants can adopt a longitudinal perspective and directly rate cognitive change. A study was carried out to assess the validity of informant ratings collected by means of the Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE). A community sample of 500 subjects aged 74 or over underwent four cognitive tests on two occasions 3½ years apart. On the second occasion, informants filled out the IQCODE. Subjects rated as having moderate or severe decline were found to have greater change on the cognitive tests. These findings support the validity of informant ratings of cognitive decline.
journal_name
Age Ageingjournal_title
Age and ageingauthors
Jorm AF,Christensen H,Henderson AS,Jacomb PA,Korten AE,Mackinnon Asubject
Has Abstractpub_date
1996-03-01 00:00:00pages
126-9issue
2eissn
0002-0729issn
1468-2834journal_volume
25pub_type
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