Learn about planning experiments and variables when working scientifically with these interactive learning resources for KS2 Science students aged 7-11 from BBC Bitesize.

New split-plot designs are presented for mixture experiments with process variables while considering a new model form. Three methods of estimation are considered for the terms in the model.

In both experiments the conclusion is that the hot deck method generally performs better than the available case method. This paper also deals with the questions which variables should be imputed and ...