The effects of object orientation and object type on children's interpretation of the word big.

Previous research indicates that preschool children have persistent difficulty interpreting big: 4-5-year-olds typically interpret big to mean tall, and 3-year-olds fail to use any consistent interpretation. We propose that children's interpretation may vary depending on 2 contextual factors: type of object and orientation of object. 40 children (ages 3 and 5) each saw 35 pairs of items and, for each pair, were asked to point to "the big one." Type of object was varied by showing each child 3 kinds of objects: "people," "brownies," and rectangles. Orientation of object was varied by presenting objects either standing perpendicular to the tabletop (vertical condition) or lying flat on the tabletop (horizontal condition). Older children relied on height more consistently than younger children, all subjects relied on area more often in the horizontal condition than in the vertical condition, and 3-year-olds relied on height more when judging the bigness of people than of rectangles matched for size. Taken together, these results demonstrate that contextual factors clearly influence children's responses. These results demonstrate the interplay of cognitive and semantic factors in the process of semantic development.