Judged by the criteria of standard intelligence tests, 10 percent have normal IQs, 20 percent are slightly retarded and 70 percent are severely retarded.
如果以一般的智力測驗標準來衡量，百分之十的自閉症患者智能正常，百分之廿屬輕度智障，百分之七十屬中、重度智能不足。