抽样法

In order to study the factors related to Enterobius infection among per-schoolchildren, a structural questionnaire with multi-stages and a random sampling was designed to interview parents of 702 pre-schoolchildren. The questionnaire included personal information of the children: their educational background and parents' occupation; the status of their housing; their handwashing habits, and their frequency and habits of bathing, etc. In addition, the children's pinworm infections were examined using two-consecutive-day adhesive cellophance paper perianal swabs. Variables causing the pinworm infection among infected and noninfected children were analyzed by x2-test and multi-variable tests including discriminant analysis and stepwise multiple regression.

为了解学龄前儿童蛲虫感染之因素，以结构型问卷多步骤随机抽样访视702名学龄前儿童的家长，问卷的内容包括：儿童个人资料、儿童父母亲教育程度、职业、住屋情形、卧室分配情形、手部卫生习惯、洗澡习惯等，并以连续两天玻璃胶纸肛围擦拭法〈two-consecutive-day adhesive cellophane paper perianal swabs〉检查儿童的蛲虫感染情形，儿童蛲虫感染与各单变项的相关，以卡方检定〈x2-test〉分析，而多变项的分析则以判定分析〈discriminant analysis〉及逐步复回归〈stepwise multiple regression〉进行分析。

Methods Volunteers of medical staff responsible for respiratory infection from 7 hospitals in Hubei province were enrolled. A self-report standard questionnaire was used to assess the general state of well-being and the frequency of airway infection during recent two years. Sera from the medical staffs and from the age-matched healthy subjects of nonmedical occupation were tested by ELISA for SCPIgG.

方法随机抽样湖北地区7所医院中经常接诊呼吸道感染患者自愿参加的健康医务人员，以问卷方式询问他们近2年发生呼吸道感染的机会；以ELISA法检测血清CP特异性免疫球蛋白G抗体，并与健康体检非医务成人SCPIgG抗体资料进行比较。

The quantitative analysis of the input parameters can be done by probability random sampling deduction method for the leaking source of pipeline gas.

采用随机抽样推断法对管道煤气泄漏源的输入参数的不确定性问题进行定量的分析，并且讨论了泄漏时间的不定性与确定泄漏源强度的关系，提出了管道气体泄漏时间估算方法。

Probability proportional sampling conducted according to various school sizes was used in this study to select subjects from all school nurses working at the elementary and junior high school levels.

研究采横断性调查法，研究工具为结构式问卷，采邮寄问卷方式以等比例分层随机抽样针对全国各学校单位之学校卫生护理人员进行抽样调查。

A questionnaire survey and purposive sampling was conducted to collect 573 sample for quantitative analysis.

透过问卷调查法，以立意抽样收集了573份有效问卷进行量化统计分析。

Via sampling test, comparing model of stepwise regression, calculating curve and forecast, we may know: these models is better and can be applied directly into practical safety monitoring work.

通过抽样测试法测试、并与建立的逐步回归模型比较以及拟合曲线和预测分析均表明：采用上述模型有很好的效果，可直接应用于实际工作中。

Hierarchical linear modeling is the most frequently used technique for analyzing multilevel data. In this paper, the twelve key issues in multilevel research and/or using HLM software were reviewed, and provided their exact meanings and feasible solutions. The 12 key issues included intraclass correlation coefficient, sample sizes, formation of organizational constructs, centering problems, fixed effect and random effect, estimation methods, goodness of fit index, explained variation, multicollinearity, robust standard error, level one variance equation, and empirical Bayes estimates.

本文针对阶层线性模式在多层次研究上有关於技术、测量与方法论所遭遇的问题，进行文献整理并讨论其实务意涵，并依据使用时机、抽样议题、资料汇总、分析方法、与模式评估与估算等五方面整理出十二项重要议题与解决之道，包括：组内相关系数的意义与判断准则、多层次研究各层的样本数问题、变数聚合成组织层次问题、中心化的意义、固定效果与随机效果的设定、估计法的选择、适配度的比较、解释变异量的计算、多元共线性的分析、强韧性标准误、第一层误差项变异数与实证贝氏估计值的运用。

If the monitoring line was above the up limitation, suggesting that the level of HV carried by about 95% rats reached or exceeded 30%. Conclusion The Sequential sampling method could make a relatively rapid and credible conclusion on the monitoring of pathogen carrier for its avoidance of blindness work and cost waste during the surveillance.

序贯抽样分析法用于鼠类携带病原体水平的监测可在一定程度上避免监测的盲目性，做到一旦获得结果即停止监测工作，避免了监测成本的浪费，可以用较为经济的监测样本量快速地得出可靠的结论。

The course covers the following topics: overview of quantitative research designs including survey research, experimental and quasi-experimental research, and correlational research; measuring of reliability and validity; sampling, hypothesis testing and statistical significance, correlational analysis, tests of mean differences, tests of frequencies, analysis of variance, linear regression, and multiple regression.

课程主要容包括问卷调查法，实验研究法，相关研究法，抽样方法，测验信度与效度，X2考验，相关分析，t考验，变异数分析，单回归，多元回归。

Put forward to estimate sampling method of Bayes of blemish dimension amendatory, gave out to evaluate the law that get core to detect the method of probability.

提出了估计缺陷尺寸修正的贝叶斯抽样方法，给出了评价钻芯法检测概率的方法。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。