Table 3 The goodness of fit, as measured by the R2, for all six regression models with FE alone as well as the R2 and the intra-class correlation (ICC) for the model with both FE and RE.
Period | IV | R2 with FE | R2 with FE and RE | ICC |
---|---|---|---|---|
Pre-KC | SDNN | 0.06 | 0.18 | 0.15 |
pDec | 0.12 | 0.26 | 0.19 | |
SDDec | 0.04 | 0.09 | 0.07 | |
During-KC | SDNN | 0.13 | 0.23 | 0.12 |
pDec | 0.29 | 0.42 | 0.19 | |
SDDec | 0.12 | 0.17 | 0.08 |