Informant Questionnaire on Cognitive Decline in the Elderly.

IQCODE

What it measures

Informant-rated change in everyday cognitive functioning over ~10 years (memory, learning, handling money/everyday tasks)

Length and format

26 (long form); 16 (short form). informant 5-point change ratings (much improved ... much worse) (informant/observer report)

Language versions

Many incl. ES, ZH, FR, IT, JA, KO, NO, PL, PT, DE, NL, DA, FI, FA, TH

Normative data

Normative data for this instrument is held in our reference library. The per-population breakdown is not published here.

Licence

public-domain / open

Licence classification is a research judgement by the catalogue’s authors, not legal advice, and it can be out of date. Confirm terms with the copyright holder or publisher before using an instrument, especially for commercial use.

Reference

Jorm AF, Korten AE. Br J Psychiatry. 1988;152:209-213. Free versions at crahw.anu.edu.au.