The results of Experiment 1 revealed developmental differences in memory abilities for features for
objects. Overall, adults had better memory performance than children. On the group level, adults, but
not children, had better memory performance for shape than for color and size and demonstrated a
persistent shape bias. However, when children were divided into two groups, those in the shape bias
group had significantly better memory performance for shape and those in the no/other bias group
had significantly better memory performance for color and size. In sum, the results of this experiment
confirm the hypothesis that learners have different memory abilities for perceptual features of objects
and that categorical biases, such as the shape bias, are related to differences in memory for features of
objects. The implications of this finding are discussed in the General Discussion.