Group demographic information.
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资源简介：
The table represents the three groups' demographic characteristics. Age (M (sd)): Mean and standard deviation of age in years; Gender (n): number of women; Education (n): 1 - 11th grade/2 - High school /3 - Graduate/4 - Postgraduate; Race (n): Caucasian/Asian/mixed.
创建时间：
2011-09-19
