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目的为二分类敏感性问题提供科学的较复杂抽样调查方法及其统计量的计算公式。方法使用Simmons模型、分层两阶段整群抽样调查方法、全概率公式、方差的基本性质等理论和方法,进行了相关公式的推导;并且使用内容效度的评价方法对该统计方法进行效度评价。结果推导出二分类敏感问题Simmons模型在分层二阶段整群抽样下总体比例的估计量及其估计方差的计算公式,其效度评价的“优良”一致率高达100%。并成功应用该调查方法及相关公式调查得苏州大学本科生和研究生婚前性行为发生比例分别为14.71%和27.25%,总体比例为18.37%。结论敏感性问题Simmons模型的分层两阶段整群抽样调查方法及相应的统计量计算公式科学可行。
OBJECTIVE To provide a scientific and complicated sampling survey method and its calculation formula for dichotomous sensitivity issues. Methods The theories and methods of Simmons model, stratified two-stage cluster sampling method, total probability formula, basic properties of variance and so on were used to derive the relevant formulas. The validity of the statistical method was evaluated by using content validity evaluation method Evaluation. Results The estimators of the overall proportion and the estimated variance of the two-class sensitive Simmons model in stratified two-stage cluster sampling are derived. The “good” consistency of validity evaluation is as high as 100%. And the successful application of the survey methods and related formulas were investigated Suzhou University undergraduate and postgraduate premarital sex ratio were 14.71% and 27.25%, the overall ratio was 18.37%. Conclusion Sensitiveness Simmons model stratified two-stage cluster sampling method and the corresponding statistical formula is scientific and feasible.