Suppose I have:
- 66 observations
- 22 clusters
- 3 observations per cluster
- Each observation can take on a value of $k\in\{0, 1, 2, 3, 4, 5, 6\}$
- Each cluster is independent of every other cluster
I want to asses whether observations within the same clusters have a meaningful correlation (ie. are each of the 3 observations per cluster independent or not).
What statistical method could I use in this situation?