Methods intelligence quotient (IQ) values were measured by the combined Raven's Test and factors of social-economic-culture on children's intelligence level were analysed.
方法用联合型瑞文测验测定全民食盐加碘出生的儿童智商(IQ)，同时分析社会-经济-文化因素对智力发育影响。
Use Wechsler Intelligence Scale for children-Chinese Revised ( WISC -CR) to test every child and calculate the score of every branch scale and of total intelligence quotient.
采用韦氏儿童智力量表中国修订本（WISC-CR），对每个儿童进行测试，计算出各分测验量表分和总智商。
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