Table 7 Child- and school-related variance components and correlation parameters of the LMM for OTK children

Child

 Endurance

1.00

 Coord

0.57

1.00

 Speed

0.66

0.68

1.00

 PowerLOW

0.63

0.69

0.82

1.00

 PowerUP

0.23

0.48

0.45

0.53

1.00

 Balance

0.26

0.30

0.31

0.34

0.12

1.00

School

 Endurance

 Coord

–

 Speed

–

–

 PowerLOW

–

–

–

 PowerUP

–

–

–

–

 Balance

–

–

–

–

–

 Covid

–

–

–

–

–

–

  Age (linear)

–

–

–

–

–

–