Power Analysis Introductory Overview - Noncentrality Interval Estimation and the Evaluation of Statistical Models

The Power Analysis module implements a number of confidence interval that are not widely available in general purpose statistics packages. Several of these are discussed within a common theoretical framework, called "noncentrality interval estimation," by Steiger and Fouladi (1997). In this section, we briefly review some of the basic rationale behind the emerging popularity of confidence intervals. Click on the links below to explore main topic areas.

Inadequacies of the Hypothesis Testing Approach