In this cross-sectional study done in the United States, 19 female and 17 male children ( N =36) ranging in age from 30- to 36-months ( M =33 months, 8 days) were presented with two different search and retrieval type problems to solve. Examination of the data revealed clear age-related differences between children who fluidly and efficiently problem solve using symbolically mediated knowledge
... [Show full abstract] and those who do not. Younger children tended to rely on a trial and error, motor-based strategy for solving the problems presented, whereas older children consistently used symbolic strategies. This conclusion supports findings from other similar studies. Further analyses of the data, however, revealed an interesting phenomenon in the form of a patterned, non-random error. This error pattern, a perseverative-type error, and the other problem-solving strategies used by the two-year-olds and young threes in this study offer insight into how young children become efficient users of symbols. Facilitating the development of symbolic problem solving in young children is discussed.