Fig. 6From: Typing expertise in a large student populationEffect of bigram frequency (top) and transition type (bottom) on IKIs in picture naming (left) and word copying (right) tasks. IKIs are plotted in log scale, as they were entered in the model. Predicted effects from the mixed model analysis are plotted on top of the data with 95% confidence intervals (obtained from ggeffects package (Lüdecke, 2018)). Bigram frequency is centred and scaledBack to article page