4th Nationwide Survey of Sexual Behavior among Young People (JASE SSJDA edition), 1993

Sample size: 4,944 people (2,440 boys, 2,504 girls)A sample of 4,944 responses for analysis was extracted from the responses collected from nine locations in Japan, using a random sampling method with quotas allocated on the basis of region, school type, year level, and gender, taking into account the distribution of the student population nationwide.

样本量：4,944人（其中2,440名男孩，2,504名女孩）；本分析样本由4,944份回应组成，这些回应系从日本九个地点收集而来，采用基于地区、学校类型、年级和性别的配额随机抽样方法选取，并考虑了全国学生人口的分布情况。