Abstract   When does the pre-school children to relatives and friends the development of the social relationship classification from and start? Only children and the one-child for compatriots kinship between behavior and emotional cognition for and what is the difference? Around the above problems, this study of the two children in the scenario of two phases of experiments, the investigation of children's behavior prediction kin selection preference, the second measuring children's emotional prediction of non kin selection。 The result shows: the children friendship develops early in the family。 Not only children of compatriots kinship relations of social classification earlier than only children。 This study images of "betrayal" of the preset effective measures the children's emotional prediction in the intimate side, not only children in the mood of the prediction on the part of close showed more sensitive detection (and intensity of significant differences)。4, 5 years of one-child in compatriots are present in the scene with strangers, showing the behavior and emotions, rigid sharing behavior, showed high negative emotions, on the part of close prediction。 

Keyword: social categorization; preschool children ; social cognitive ; Kinship ; resource distribution 

目录

1 前言 4

2 研究方法 6

2。1 被试 6

2。2 实验材料 6

2。2。1 实验图片 6

2。2。2 面部情绪量表（FAS） 7

2。3 实验流程 7

2。3。1 预备阶段 7

2。3。2 资源物分配情景中的行为预期 8

2。3。3 背叛情景中的情绪预测 8

3 结果 8

3。1 资源分配问题的选择概率 9

3。1。1。1 三个关系组*三个年龄组的单样本 t 检验 9

3。1。1。2 家庭结构（独与非独）* 三个关系组的差异 10

3。1。2 亲人和好朋友组的亲缘选择发展趋势 11

3。1。3 好朋友和陌生人组亲缘选择的发展趋势 12

3。1。4 亲人和陌生人组亲缘选择的发展趋势 12

3。2 背叛情景中的情绪预测差异 13

3。2。1。1 三个关系组*三个年龄组的情绪预测均值