Left- and Right-Handedness Study, 1970

The data for this study were collected in 1970 from 1,557 classrooms in schools located in the Vancouver, British Columbia, Canada, area. The study used questionnaires filled in by teachers to determine the incidence of left-handedness among school children. Variables also describe the type of school, socioeconomic status of the area where the school was located, grade level of children, educational ability of the classes they belonged to, and the students' sex.

本研究的数据采集于1970年，样本取自加拿大不列颠哥伦比亚省温哥华地区的1557间学校教室。本研究通过教师填写的调查问卷，统计学龄儿童的左利手发生率。该数据集同时涵盖以下变量：学校类型、学校所在区域的社会经济地位、儿童所在年级、所属班级的教学水平，以及学生性别。