Related Experiment Video
Updated: Feb 3, 2026

Evaluating Tests of Cognition using a Computerized Touch-Sensitive Tablet, Eye Tracking, and Functional Magnetic Resonance Imaging
Published on: January 30, 2026
The Validity of the Norwegian Version of the Cognitive Function Instrument
Mona Michelet1,2,3, Knut Engedal4,5, Geir Selbæk4,6,7
1Norwegian National Advisory Unit on Ageing and Health, Vestfold Hospital Trust, Tønsberg, Norwaymona.michelet@aldringoghelse.no.
Background/Aims:
A timely diagnosis of dementia is important, and the Cognitive Function Instrument (CFI) is a newly developed instrument to screen for cognitive decline. The aim of this study was to evaluate the validity and internal consistency of the Norwegian version of the CFI.
Methods:
We included 265 participants with dementia, mild cognitive impairment (MCI), subjective cognitive impairment (SCI), and a reference group without subjective or assessed cognitive decline. The participants and their relatives answered the self- and proxy-rated versions of the CFI.
Results:
The Norwegian CFI had power to discriminate between people with dementia and with MCI, SCI, and the reference group. The proxy version had better power than the self-rated version in our participants (area under the curve [AUC] proxy-rated varying from 0.79 to 0.99, AUC self-rated varying from 0.56 to 0.85).
Conclusion:
The Norwegian CFI was found to be a useful, valid, and robust instrument.
Related Concept Videos
Reliability and Validity
Cognitive Dissonance
Instrument Calibration
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
Instrumentation Amplifier
To overcome this challenge, an ECG machine utilizes an instrumentation amplifier. This specialized amplifier is...
Instrument Transformers
Uncertainty in Measurement: Reading Instruments

