Participants were presented with all tasks on an iPad. Stimuli for the tasks, two-dimensional
objects, were constructed in Adobe Photoshop. There were 36 objects presented in the shape bias task
(4 objects per trial) and 36 objects presented in the feature memory task (4 objects per trial), controlling
for the number of objects to which children were exposed across tasks in the experiment. Objects
were designed so that, when necessary for the task, objects were exact shape matches, exact color
matches, and exact size matches (i.e., same number of pixels). Examples of these objects can be seen
in