intraklassekorrelasjon
Intraklassekorrelasjon, often abbreviated as ICC, is a statistical measure used to assess the reliability or consistency of measurements made by different observers or within the same observer across different occasions. It quantifies the degree of agreement among a set of measurements that are expected to be measuring the same underlying construct. The ICC can range from 0 to 1, where a value of 1 indicates perfect agreement and a value of 0 indicates no agreement beyond what would be expected by chance.
The calculation of ICC typically involves an analysis of variance (ANOVA) framework. It essentially partitions the
ICC is widely used in various fields, including psychology, medicine, and education, to evaluate the reliability