A general strategy for quantity judgments: the height width rule.
Previous work has found that 5-year-olds judge the area of rectangles by a height width rule. Present results indicated that 3- and 4-year-olds also judge area by a height width rule. This adding rule was interpreted in terms of a general-purpose judgmental strategy that young children employ to make quantitative judgments. Both the use of a rating scale and the use of an adding rule in judgment indicate an impressive level of quantitative ability at a very early age.
D002657:Child Development; D002675:Child, Preschool; D005260:Female; D005556:Form Perception; D006801:Humans; D007600:Judgment; D008297:Male; D012858:Size Perception