This research examines the difficulty children encounter when acquiring 2 s
pecific sets of adjectives, color and size words, and suggests that childre
n must acquire a system of mapping in learning these welds. Children were a
ssessed on 4 types of mappings (word-word maps, property-property maps, wor
d-property maps; and word-word-property maps) by completing 3 color tasks.
Children also participated in comparable tasks for size words. In Study 1,
13 two-year-olds were followed longitudinally at 3-week intervals. In Study
2, 56 two-year-olds participated in a cross-sectional replication. The res
ults indicate that children acquire color maps in a characteristic order. C
hildren demonstrated a different pattern of acquisition for size words. The
results suggest that learning word associations may promote color word acq
uisition and that learning color words may promote selective attention to c
olor.