This is called contact theory where intergroup contact reduces intergroup prejudice.

这就是所谓接触理论，群体间接触减少了群体间。

Americans, by contrast-at least in the maturity of old age—have more intergroup wisdom than the purportedly collectivist Japanese.

相反，美国人——至少在年龄比较那一组——在群体判断力得分上比据称崇尚集体主义日本人。

As Dr Bowles himself says, one cannot always distinguish between deaths due to intergroup violence and that occurring within groups.

正如鲍尔斯本人所说，总是分不清哪些死亡是族群间暴力所致，哪些是同族群暴力所致。

Each participant's scores were then added up and mathematically transformed to create an overall value within a range of zero to 100 for both interpersonal and intergroup wisdom.

将参与者每个问题得分相加，再把总分从人际关系及团体关系两方面分别转换为百分制。