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. Author manuscript; available in PMC: 2008 Jul 3.
Published in final edited form as: Child Dev. 2003;74(6):1783–1806. doi: 10.1046/j.1467-8624.2003.00638.x

Table 1.

Experiment 1: Mean Accuracy (Standard Deviations) of Categorizing Items Into Food Categories as a Function of Age

4-year-olds 7-year-olds Adults
Taxonomic
Beverages .87 (.028) 1.00 (0) 1.00 (0)
Bread and grains .56 (.025) .59 (.027) .93 (.017)
Dairy .68 (.030) .78 (.025) .78 (.025)
Fruit .84 (.023) 1.00 (0) .96 (.012)
Meat .78 (.031) 1.00 (0) .96 (.012)
Vegetables .71 (.031) .90 (.020) .93 (.017)
Script
Breakfast .68 (.040) .81 (.025) .62 (.034)
Lunch .59 (.037) .93 (.017) .96 (.012)
Dinner .71 (.036) 1.00 (0) .93 (.017)
Birthday .87 (.022) .96 (.012) .96 (.012)
Dessert .75 (.031) .87 (.022) .90 (.020)
Snack .68 (.035) .84 (.030) .81 (.030)
Evaluative
Healthy .56 (.030) .75 (.036) .90 (.020)
Junky .71 (.036) .78 (.036) .96 (.012)

Note. Four-year-olds and 7-year-olds were above chance on all of the taxonomic foods except breads and grains, ts(15) >2, ps <.05. Adults were above chance on all of the taxonomic foods, ts(15) >4, ps <.05. Four-year-olds were above chance on all of the script foods except breakfast and lunch, ts (15) >2, ps <.05. Seven-year-olds were above chance on all of the script foods, ts(15) >4, ps < .05. Adults were above chance on all of the script foods except for breakfast foods, ts(15) >3, ps < .05. Seven-year-olds and adults were above chance on both the healthy and junky foods, ts(15) >2, ps < .05. Four-year-olds were above chance on junky evaluative foods, but not on healthy evaluative foods, t(15) = 2.40, p < .05.