School-level intra-cluster correlation coefficients and autocorrelations for children’s accelerometer-measured physical activity in England by age and gender

Background: Randomised, cluster-based study designs in schools are commonly used to evaluate children’s physical activity interventions. Sample size estimation relies on accurate estimation of the intra-cluster correlation coefficient (ICC), but published estimates, especially using accelerometry-me...

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Bibliographic Details

Main Authors:	Ruth Salway, Russell Jago, Frank de Vocht, Danielle House, Alice Porter, Robert Walker, Ruth Kipping, Christopher G. Owen, Mohammed T. Hudda, Kate Northstone, Esther van Sluijs, International Children’s Accelerometry Database, Dale Esliger
Format:	Default Article
Published:	2024
Subjects:	Health sciences Epidemiology Public health General & Internal Medicine Physical activity Children Adolescents Schools Intra-cluster correlation coefficient Cluster autocorrelation Cluster randomised trial Sample size ICAD
Online Access:	https://hdl.handle.net/2134/27370116.v1
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