Among 32 countries Straus studied, in those where spanking was accepted, the average IQ of the survey population was lower than in nations where spanking was rare, the researcher says.

• 斯特劳斯说，在他研究的32个国家里面，那些普遍认可体罚行为的国家，人们的IQ值要低于那些极少存在体罚行为的国家。