抽样调查断尾资料的断尾回归模型分析

Application of truncated regression model in truncation data of sample survey

目的介绍断尾回归模型及其在抽样调查断尾资料中的应用。方法采用断尾回归模型分析女性劳动时间影响因素的数据，模型的参数估计应用STATA统计软件实现。结果对于抽样调查断尾资料断尾回归模型可以得到具有统计学意义的模型，影响女性工作时间的因素是oh6，其偏回9-3系数是-803．00。结论断尾回9-3模型和最小二乘法结果存在较大差异，应用断尾回归模型还是普通线性回归要看研究目的。

Objective To introduce truncated regression mode[ and its application in truncation data of sample survey. Methods Stata statistical package was used to the parameter estimation of truncated regression model to the data of female work- ing time level. Results Truncated regression model could give us a model which was significant in statistics. With the test lev- el, the working time level might affected by the factor of ch6. Conclusion The results of truncated regression model and least squares method have obvious differences, whether the very method is truncated regression model or least squares method depends on the aim of the study.