3. when the researcher is interested in differences in relationships between Level 1 variables depending on a Level 2 variable, then the ICC test to show mean differences in Level 1 variables among Level 2 groups is not relevant.
3. when the researcher is interested in differences in relationships between Level 1 variables depending on a Level 2 variable, then the ICC test to show mean differences in Level 1 variables among Level 2 groups is not relevant.