Quantifying the User Experience > Three Components of a Confidence Interval > Confidence Level - Pg. : Safari Books Online

Table of Contents

Download Safari Books Online apps: Apple iOS | Android

Entire Site

Safari Books Online is a digital library providing on-demand subscription access to thousands of learning resources.

This Book

Quantifying the User Experience

Quantifying the User Experience

Search

Contents

Table of Contents

Quantifying the User Experience: Practical Statistics for User Research

Table of Contents

Acknowledgments

About the Authors

1 Introduction and How to Use This Book

2 Quantifying User Research

3 How Precise Are Our Estimates? Confidence Intervals

Confidence Interval = Twice the Margin of Error

Confidence Intervals Provide Precision and Location

Three Components of a Confidence Interval

Confidence Level

Confidence Interval for a Completion Rate

Confidence Interval for Rating Scales and Other Continuous Data

Key Points from the Chapter

Chapter Review Questions

4 Did We Meet or Exceed Our Goal?

5 Is There a Statistical Difference between Designs?

6 What Sample Sizes Do We Need?: Part 1: Summative Studies

7 What Sample Sizes Do We Need?: Part 2: Formative Studies

8 Standardized Usability Questionnaires

9 Six Enduring Controversies in Measurement and Statistics

Appendix: A Crash Course in Fundamental Statistical Concepts

URL

Help