Picture recognition memory in children: effects of homogeneous versus heterogeneous classes of pictures.
This study shows that, when homogeneous classes of pictures are used in a picture-recognition task, developmental trends do emerge whereas when a heterogeneous class of pictures is used such developmental trends are not found. These results are consistent with the view that as children get older (3-4 yr., 6-7 yr., 9-10 yr., adolescents, adults) they get better at organizing material that is more difficult to differentiate or remember.