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Table 2 Unconditional nested model for percent of time spent in MVPA during recess

From: An observational study of recess quality and physical activity in urban primary schools

 Estimation of covariance parameters
ParameterEstimates.e.Wald Zp-value95% CI of the estimateICC
Residual.122.00340.99<.0010.116, 0.128 
Intercept Variance (Recess Session).009.0023.97<.001.005, .0140.066
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