TY - JOUR T1 - How do symbols affect 3-to 4-year-olds' executive function? Evidence from a reverse-contingency task JO - DEVELOPMENTAL SCI PY - 2009/11/01 AU - Apperly IA AU - Carroll DJ ED - DO - DOI: 10.1111/j.1467-7687.2009.00856.x VL - 12 IS - 6 SP - 1070 EP - 1082 Y2 - 2024/09/19 ER -