
Average (triangles) and individual (dots) looking times to trials consistent with the first trial type (light gray) compared with inconsistent trials (dark gray) in experiment 1. (Left) Nap data from 15 mo olds from Gómez et al. (2006). (Right) Eighteen month olds’ looking times. An ANOVA revealed a significant age × trial type interaction, with 15 mo olds looking longer to trials consistent with the first test trial type, while 18 mo olds showed no difference in looking between trial types.










