Intermediate

You define optimal data capture for repeated measures with data repositories created using industry standards to ensure data formats and data availability support the lifespan of longitudinal studies  

You use a range of statistical methods e.g. survival analysis, growth curve modelling etc and use techniques to handle missing, correlated or irregular dataYou present the results of longitudinal analysis clearly and explain the meaning and limitations of available data and its context.

You explain how and why bias may have had an effect