IBM SPSS SamplePower是挤满了设计功能，找到准确的样本大小更容易。它有两个接口 – “经典”对于那些熟悉功耗分析和一个“易”的界面，引导你通过比较常见的程序接口。每个接口解释条款，你需要通过必要的步骤，以确定有效样本大小 – 给你清晰，准确的回答您的研究向前移动。
每一步作出明智的决策
IBM SPSS SamplePower的交互式指南，它可以帮助您确定有效样本大小的一步step.IBM SPSS SamplePower的互动摘要面板，让您在任何时候，权力和精密的简明摘要，所以你可以看到每一个决定会影响你的结果如何。
在您开始研究之前的比较结果
此图显示了如何改变其他设置，如α，样本大小不同。研究参数的不同组合会影响您的统计power.The存储场景的工具，让您在您的研究流最佳控制。您可以改变α水平，电力，规模效应，在主屏幕或样本大小和存储你继续你的结果。
请参阅您的研究标准将如何影响电源
与IBM SPSS SamplePower创建的表和图表让您轻松评估研究参数（如建议的样本大小，α水平和持续时间）的不同组合将如何影响您的统计力量。
原文：
IBM SPSS SamplePower is packed with features designed to make finding accurate sample sizes easy. It has two interfaces – the “classic” interface for those familiar with power analysis and an “easy” interface that walks you through the more common procedures. Either interface explains terms and takes you through the steps necessary to determine an effective sample size – giving you clear, precise answers to move forward with your research.
Make Informed Decisions at Every Step
IBM SPSS SamplePower’s interactive guide, which helps you determine an effective sample size step-by-step.IBM SPSS SamplePower’s interactive summary panel gives you concise summaries of power and precision at any point, so you can see how each decision affects your results.Compare Results Before You Begin Your Research
This illustration shows how the sample size varies as other settings, such as alpha, are changed. Different combinations of research parameters will affect your statistical power.The stored scenarios tool gives you optimum control over the flow of your research. You can vary alpha level, power, effect size or sample size in the main screen and store your results as you continue.See How Your Research Criteria Will Affect Power
Tables and graphs created with IBM SPSS SamplePower enable you to easily assess how different combinations of research parameters (such as proposed sample size, alpha levels and duration) will affect your statistical power.
下载地址：
IBM SPSS Sample Power 3.0.1 注册码：迅雷快传
IBM SPSS Sample Power 3.0.1 安装包：迅雷快传