From: Dimensionality of the Pittsburgh Sleep Quality Index in the young collegiate adults
Number of factors | Actual eigenvalue from PCA | Random order eigenvalues (means) | Random order eigenvalues (95th percentile) |
---|---|---|---|
1 | 2.45 | 1.27 | 1.36 |
2 | 1.14 | 1.15 | 1.22 |
3 | .91 | 1.07 | 1.12 |
4 | .71 | .99 | 1.04 |
5 | .69 | .92 | .97 |
6 | .59 | .84 | .90 |
7 | .50 | .75 | .82 |