Presenting information on growth distanc
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T. J. Cole
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Article
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1998
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John Wiley and Sons
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English
โ 142 KB
๐ 1 views
Growth charts, which conventionally record only cross-sectional (distance) information, can be extended to monitor growth rate over time (velocity). To adjust for regression to the mean the velocity should be conditional on the previous measurement. By working on the SDS scale rather than the measur