ICCbaserade

ICCbaserade is a Swedish adjective used to describe methods, analyses, decisions or instruments that are based on the intraclass correlation coefficient (ICC). The ICC is a statistical measure used to quantify the reliability or agreement of measurements made by different observers measuring the same phenomenon, or of repeated measurements by the same observer. ICCbaserade approaches are widely used in psychology, medicine, education and the social sciences to assess inter-rater reliability, test-retest reliability, or the consistency of measurements across items or tests.

Common ICC models are described in the statistical literature and include one-way and two-way forms, random and mixed effects. In practice, researchers report ICC values for single measurements or averages of multiple measurements, with higher values indicating greater reliability. Interpretations depend on the model, design and field but, in general, higher ICC indicates stronger agreement.

Limitations include dependence on sample heterogeneity, number of raters, the time interval between measurements, and model assumptions about random effects and homoscedasticity. ICCbaserade methods may be sensitive to outliers and to restricted ranges of the true scores, and should be complemented by other reliability or agreement indicators.

Because ICCbaserade is a term primarily used in Swedish statistical and methodological writings, its exact meaning can vary by context. In summary, ICCbaserade denotes approaches grounded in the intraclass correlation coefficient to quantify reliability and agreement in measurements.