Framework for the Analysis of Experiments

Irrespective of the type of experiment being analysed, the following procedure can 

Pre-analysis, which lays the groundwork for the following parts. In many ways, this is both the most difficult and the most important step in the whole framework. It consists of the following steps  

Calculating the values, using appropriate formulae compute the parameter estimates, the normal probability plot of the parameters, and if appropriate, the SSRi and F-value for each of the parameters. 

Model reduction, which seeks to remove all uimecessary parameters from the model. Three main methods can be used  

Residual analysis, using the reduced model, the resulting residuals should be analysed to determine whether the assumptions underlying regression have been satisfied. If the residuals suggest problems, then further experiments or analysis may need to be performed to resolve the issue. 

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