Validity of The IQCODE
The IQCODE has been found to distinguish people who have or do not have dementia. A low score on the IQCODE in a person who does not currently have dementia has also been found to predict that they will develop dementia in the future.
The IQCODE has found to correlate highly with conventional dementia screening tests, such as the Mini-Mental State Examination, and to have moderate correlations with a range of neuropsychological tests. It has also been found to correlate with change in cognitive test scores over time.
The IQCODE has near-zero correlations with a person’s level of education or with their intelligence earlier in life. This is in contrast to conventional dementia screening tests like the Mini-Mental State Examination, which are affected by education and intelligence as well as the presence of dementia.
Read more about this topic: Informant Questionnaire On Cognitive Decline In The Elderly
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