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Analysing longitudinal data: Multilevel growth models (II)

September 5, 2015
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Analysing longitudinal data: Multilevel growth models (II)

This is the third post in the longitudinal data series. Previously, we introduced what longitudinal data is, how we can convert between long and wide format data-sets, and a basic multilevel model for analysis. Apparently, the basic multilevel model is not quite enough to analyse our imaginary randomised controlled trial (RCT) data-set. This post is

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Analysing longitudinal data: Multilevel growth models (I)

August 22, 2015
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Analysing longitudinal data: Multilevel growth models (I)

Last time we have discussed the two formats of longitudinal data and visualised the individual growth trajectories using an imaginary randomised controlled trial data-set. But could we estimate the overall trajectory of the outcomes along time and see if it’s increasing, decreasing, or stable? Yes, of course, we could estimate that in multilevel growth models

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