Ashya and Bo performed equally well on trials in which the probe comparisons were used (see
Table 1). The percentage of correct responses for probe comparisons was 83.3% for Ashya and 73.3% for Bo (binomial test: p < 0.01); thus, Ashya’s and Bo’s levels of performance were not affected by the order in which quantities were presented. Mito’s accuracy rate for the comparisons 1 + 3 vs. 5 + 1 and 3 + 2 vs. 5 + 2 was 66.7%. Unfortunately, Mito could not be tested for the additional comparisons, and there were insufficient data to analyze her performance for a possible order effect.