The results of the Kolmogorov–Smirnov tests revealed
that the majority of the data (66 out of 84 measures) were not normally
distributed, D(97) > .09, p < .05. Therefore, we analysed the
effects of Colour and Shape independently, and used
non-parametric statistics by collapsing one factor2 and analysing the other to obtain a total of 40 measures.