The analysis of spearman rank correlation showed that there were correlations among risk behaviors.
等级相关分析表明：多种不良行为之间存在相关关系。
Data were analyzed by rank sum test and Spearman correlation test.
资料采用秩和检验和等级相关分析的统计学处理方法。
It was first described by English psychologist Charles Spearman in 1904, and refers to the phenomenon that children who tend to do well at one subject also tend to excel at others;
其最先由英国心理学家查尔斯•斯皮尔曼在1904年提出——指的是在一个学科上表现很好的儿童在其它科目上也可以超过其他人；
It was first described by English psychologist Charles Spearman in 1904, and refers to the phenomenon that children who tend to do well at one subject also tend to excel at others;
其最先由英国心理学家查尔斯•斯皮尔曼在1904年提出——指的是在一个学科上表现很好的儿童在其它科目上也可以超过其他人；
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