Effect of height measurement error δ on the proportion of children falling one centile band width or more between 5 and 6 years of age. The research measurement error ε in formula (3) is taken as 0.25 cm, and the population height SD ς 5 cm
| Value | |||||
|---|---|---|---|---|---|
| Measurement error δ (cm) | 0.25 | 0.4 | 0.6 | 0.8 | 1 |
| Adjusted correlationr′ (3) | 0.981 | 0.977 | 0.969 | 0.958 | 0.944 |
| SD of ΔSDS (1) | 0.19 | 0.21 | 0.25 | 0.29 | 0.33 |
| Falling one band or more (%) | 0.03 | 0.09 | 0.4 | 1.0 | 2.3 |