In a multilevel model in which reaction times on different trials (level 1) were collected from within different people (level 2), what does the intraclass correlation represent?
A)The proportion of the total variability in reaction times that is attributable to the people
B)The proportion of the total variability in reaction times that is attributable to the trials
C)The difference in the total variability in reaction times explained by the trials compared to that explained by the people
D)The relationship between the variance in reaction times explained by people and that explained by trials

Question

Quizplus · Accepted Answer

The intraclass correlation represents the proportion of the total variability in reaction times that is attributable to the people in the multilevel model. It shows the extent to which individual differences among the people account for the variability in the reaction times.

In a Multilevel Model in Which Reaction Times on Different