Interclass correlation and intra-class correlation are two special cases of correlation analysis. Interclass correlation shows the association among the groups and intra-class correlation shows the association within a group.
|Intra class(a) vs Inter class(b)|
“Interclass” means among the groups.
“Intra class” means within group.
suppose we have two groups of data named height and weight. when we build up a relationship between that two groups then this relation is called inter class correlation. And the coefficient which define their relationship is called the coefficient of inter class correlation.
Intra class correlation
Suppose we only one group of data named height. When we build a relationship among or between the data of height group then this relation is called intra class correlation. And the coefficient which define the relation is called the coefficient of intra class correlation.
Application of Intra class correlation
- How closely relatives resemble each other with regard to a certain characteristic or traits.
- Reproducibility of numerical measurements made by different people measuring the same thing.
From the above discussion now it is very clear about intra class correlation and interclass correlation. I think there no confusion about inter class and intra class correlation.How to analyze data using SPSS (for beginners)-part 1
How to analyze data using SPSS (part-2), how to input data in SPSS
How to analyze data using SPSS (part-3), how to import data in SPSS from excel file
How to analyze data using SPSS (part-4), how to sort data in SPSS
How to analyze data using SPSS ( part-5) how to merge file in SPSS?
How to analyze data using SPSS ( part-6), how to merge file in SPSS
How to analyze data using SPSS (part-7), Finding missing values, Replacing missing values, Coding missing values in SPSS
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Bivariate analysis| How to analyze data using spss (part-10)
Normality check| how to analyze data using spss (part-11)