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Choosing A Procedure

使用下拉菜单、过程搜索或类别树，查找示例大小过程很容易。观看一段简短的视频，学习如何选择你想要的程序。

Enter The Values

sample size过程工具易于使用，并且对于每个选项都有内置的帮助消息。

放大信息图以查看传递方法的描述，这有助于您在示例大小过程工具中输入适当的值。您还可以观看本视频，以了解在PASS中使用过程窗口的示例。

Obtaining A Sample Size In PASS

在PASS中，您可以在几个短步骤中估计统计测试或置信区间的样品量。如果你在任何一个步骤中需要指导，PASS有优秀的文档，有免费的培训视频，你可以联系我们的统计博士团队。

Sample Size & Power

PASS软件为超过920个统计测试和置信区间场景提供了样本量工具—是任何其他样本量软件的两倍多。每个工具都经过已发表的文章和/或文本的仔细验证。

PASS提供完整的集成文档和博士统计学家支持。

PASS已经经过了20多年的微调，现在是临床试验、制药和其他医学研究的首选样本量软件。它还成为所有其他需要样本量计算或评价的领域的支柱。

Ready to Use Output

当运行一个PASS过程时，在输出窗口中显示示例大小的结果和相应的图。可以单击示例大小或功率曲线，以显示在单独的窗口中查看或保存。

输出导航树可以很容易地导航输出。输出的格式使其易于查看、复制和粘贴，或保存。可以将多个输出运行发送到输出库以保存或比较样本大小分析。

List of Sample Size Procedures – Over 920 Scenarios

This page contains a list of the tests and confidence intervals for which sample

size and power can be calculated by PASS. Click to see some additional details

about one or two means, multiple means, correlation, normality tests, variances,

one proportion, two proportions, chi-square and other proportions tests, survival, or regression in PASS.

Jump to category:

Bland-Altman Method
Cluster-Randomized Designs
Conditional Power
Confidence Intervals
Correlation
Cross-Over Designs
Design of Experiments
Equivalence
Exponential Distribution Parameter Confidence Intervals
Group-Sequential Tests
Means - One
Means - Two Independent
Means - Two Correlated or Paired
Means - 2x2 Cross-Over Designs
Means - Higher-Order Cross-Over Designs
Means - Many (ANOVA)
Mediation Effects
Michaelis-Menten Parameters
Mixed Models
Non-Inferiority
Nonparametric
Non-Zero and Non-Unity Null Tests
Normality Tests
Pilot Studies
Proportions - One
Proportions - Two Independent
Proportions - Correlated or Paired
Proportions - Cross-Over Designs
Proportions - Sensitivity and Specificity
Proportions - Many
Quality Control
Rates and Counts
Reference Intervals
Regression
ROC Curves
Superiority by a Margin Test
Survival Analysis
Tolerance Intervals
Two-Part Models
Variances and Standard Deviations
Bayesian Adjustment
Tools

PASS 2019版有什么新变化?

We are pleased to announce the release of PASS 2019. PASS 2019 adds

126 new sample size procedures and includes 68 updated or improved procedures. Among the new procedures are those for Group-Sequential Tests, Conditional Power, Tests of Mediation Effect, Two Proportions,

Mixed Models Tests, Simple Linear Regression, Multiple Regression,

Bayesian Adjustment, Reference Intervals, Pilot Studies, Two-Part Models,

Bland-Altman Method, One Mean, Paired Tests, Two-Sample T-Tests,

Wilcoxon Signed-Rank Tests, Mann-Whitney U or Wilcoxon Rank-Sum

Tests, and a variety of Variance and CV Comparison procedures.

For the 3 new group-sequential sample size procedures in PASS 2019

New Procedures in PASS 2019

Group-Sequential Tests (with Futility Boundary Options)

Conditional Power

Tests of Mediation Effect

Two Proportions

Mixed Models Tests