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Results from Experiment 4: a) The number of trials with the correct answer for the Digits and Dots tasks as a function of age. b) The correlation between the number of correct trials in the Dots task and that in the Digits task. The dotted line indicates chance performance. c) The average number of correct trials for the Digits and Dots task in each age group. d) The proportion of children who answer correctly for each of the test items in the Digits and Dots tasks.
