Fig. S3.

Comparison of test and filler items. Mean accuracy of all test items depicted in gray; mean accuracy of all filler items depicted in purple. Although mean response accuracy for test and filler items significantly differed for 5- to 6-year-olds (t(17) = 4.51, p < 0.001), a selective focus on the final sub-clause in this age-group can be excluded since performance for test and filler items is positively correlated (r = 0.74, p < 0.001), which suggests that 5- to 6-year-old children who show high accuracy for test items also show high accuracy for filler items.