Figure 9. Speed benefit of POD is more pronounced in those with strong SW skills.

Interaction of Device and Sight Word Efficiency (SW) is plotted for RATE. Participants read faster on the POD than on the PAD. As expected, those with high SW scores read faster than those with poor sight word skills. However, the speed advantage of the POD is more pronounced in those with high SW scores. (Confidence intervals indicated as in Fig. 6.)