

More than 30 years ago when the first edition of Multivariate Data Analysis was published, we could not have imagined the applications of multivariate statistics would be as pervasive as they are today. This continued interest has contributed to the acceptance of the past six editions of this text and the demand for this 7th edition. In approaching this revision, we continually strive to reduce our reliance on statistical notation and terminology and instead to identify the fundamental concepts which affect application of these techniques and then express them in simple terms—the result being an applicationsoriented introduction to multivariate analysis for the nonstatistician.
One new feature of the seventh edition is the development of separate versions for the U.S. domestic market and the international community. While many of the concepts are similar, each edition has been tailored to match the needs of the different user. Of particular note is the addition of a chapter on canonical correlation to the international edition due to increased demand for coverage of that topic.
Based on much positive feedback, the “Rules of Thumb” for the application and interpretation of the various techniques have been expanded in this edition, including important issues like sample size. The rules of thumb are highlighted throughout the chapters to facilitate their use. We are confident these guidelines will facilitate your utilization of the techniques.
Special thanks are due to Peiju Lucy Ting and HsinJu Stephanie Tsai, both from University of Manchester, for the revision of the chapter on canonical correlation analysis. They updated this chapter with an example using the HBAT database, added recently published material, and reorganized it to facilitate understanding.
An important supplement is the expansion of a Web site (www.mvstats.com) devoted to multivariate analysis, titled “Great Ideas in Teaching Multivariate Statistics.” This Web site acts as a resource center for individuals interested in multivariate analysis, providing links to resources for each technique as well as a forum for identifying new topics or statistical methods.

What's New in the Domestic Edition 
A primary objective of the 7th edition was to streamline coverage of the materials, with particular emphasis on making each chapter shorter and simpler in its organization, with chapters typically focusing on a single topic. For example, multiple discriminant analysis and logistic regression are separate chapters, as are multidimensional scaling and correspondence analysis. Two chapters, cluster analysis and conjoint, were extensively revised to more effectively demonstrate straightforward approaches to obtain solutions.
We have also undertaken a substantial expansion and reorganization in coverage of structural equations modeling. We now have four chapters on this increasingly important technique plus a comparison with partial least squares. Chapter 12 provides an overview of structural equation modeling; Chapter 13 focuses on confirmatory factor analysis; Chapter 14 covers issues in estimating and testing structural models; and Chapter 15 reviews a few more advanced topics in both confirmatory factor analysis and structural equations modeling, such as testing higherorder factor models, group models, and moderating and mediating variables. These four chapters provide a comprehensive overview and explanation of this technique.

What's New in the International Edition 
As noted earlier, special thanks are due to Peiju Lucy Ting and HsinJu Stephanie Tsai, both from University of Manchester, for a new chapter on canonical correlation analysis (Chapter 5). They updated this chapter with an example using the HBAT database, added recently published material, and reorganized it to facilitate understanding.
This edition is shorter and simpler in its organization, with all chapters revised to incorporate advances in technology, and several chapters have undergone more extensive change. Two chapters, cluster analysis and conjoint, were extensively revised to more effectively demonstrate straightforward approaches to obtain solutions.
Another major change is the expansion and reorganization in coverage of structural equations modeling. Chapter 11 provides an overview of structural equation modeling. Chapter 12 then focuses on confirmatory factor analysis, issues in estimating and testing structural models, and advanced topics in both confirmatory factor analysis and structural equations modeling, including PLS. As always, we strived to eliminate and minimize the use of technical terms and mathematical and statistical notation that often is confusing. 
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