中国科学院心理研究所机构知识库

以 7岁、9岁、12岁小学生和成人大学生为被试 ,让他们在 5种实验任务中进行期望值判断 ,以探讨儿童期望值判断的发展。结果表明 :(1) 7岁儿童就能够在简单任务中进行概率推理和正确判断事件的期望值 ; (2 )儿童对概率和价值两个维度相乘关系的认知呈现发展趋势 ,但其乘法规则的运用仍逊于成人水平。而成人期望值判断的成绩有较大的个体差异。 (3)在期望值相同的情况下 ,儿童更注重事件发生的概率而相对忽视价值

The study was to explore children s development of judgment of expected value in Chinese primary school Subjects from grade 1, grade 3 , grade 6 and college students participated in the study They were asked to give judgment of expected value in 5 kinds of tasks The results showed: (1) Even 7 year old children could make probability inference and have correct judgment of expected value in simple tasks; (2) Children s judgment of expected value developed with age, they consider both probability and v...