The researchers (Ko & Kuo, 2009) administered a 43-item self-report survey to 596 college students who were mostly between ages 16 and 22 and female (71 percent).
研究人员（Ko & Kuo, 2009）利用一个由43项自述组成的调查，对596名年龄在16到22岁之间的在校大学生（女性占71%）进行了一次调查。
Subjects answered survey questions via phone and a self-administered questionnaire at the beginning and end of the study period.
调查对象从研究开始一直到结束的整个时期，通过电话和填写问卷来回答所提出的问题。
Methods A self-administered questionnaire survey was conducted among 200 adolescents about computer games and self-esteem.
方法采用自制计算机游戏调查问卷、需要调查表以及自尊量表等对青少年200名进行调查。
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