Informant Questionnaire on Cognitive Decline in the Elderly

**Semantic type:** Intellectual Product

**Definition:** A questionnaire designed to assess whether an individual had a decline in cognitive functioning. This questionnaire is answered by a friend or family member of the individual and each situation is rated by the informant for the amount of change over the previous 10 years.

**Synonyms:** - IQCODE - Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE)