Number of rewards acquired from both experimenters and children's net income according to the number of items returned by children.

Within any one session, the subjects' net income is the amount of items kept by the child plus those received after return. Subjects maximize their gain by giving more (4 sweets, net income 8) to the doubling partner, and less to the fixed partner (1 sweet, net income 11).

在单次实验会话中，儿童被试的净收益为其自身留存的糖果数量与返还后获得的糖果数量之和。儿童被试可通过向翻倍型搭档捐赠更多（4颗糖果，净收益为8）、向固定型搭档捐赠更少（1颗糖果，净收益为11）来实现自身收益的最大化。