%0 Journal Article %T How do symbols affect 3‐ to 4‐year‐olds' executive function? Evidence from a reverse‐contingency task %A Apperly, Ian A. %A Carroll, Daniel J. %J Developmental Science %V 12 %N 6 %P 1070-1082 %@ 1363-755X %D 2009-01-01 %I Wiley Subscription Services, Inc., A Wiley Company %~ DeepDyve