Statistics for The Behavioral Sciences

Key differences between 10th and 9th editions

• Period between current and previous publications: 4 years (2016 vs 2012).
• Gravetter & Wallnau Statistics was first published in 1990.
• Research examples and real world examples have been updated, and the end-of-chapter problems have been extensively revised.
• Chapter 2: New preview introduces concept of frequency distribution.
• Chapter 4: New preview introduces a measure of central tendency.
• Several sections in the chapters 6 and 7 are considerably simplified and shortened.
• Chapter 8: New preview explains the necessity of new test statistic.
• Chapter 11:
• Separate section covering hypothesis testing.
• New section on the comparison of repeated measures design vs independent groups design.
• Chapter 13: New preview section presents two-factor analysis of variance example.
• Chapter 15: New section covering t statistic for the significance of the correlation coefficient.
• Chapter 16: New section illustrates the equivalence of testing the significance of correlation and testing the significance of regression equation with one predictor variable.
• Chapter 17: New section on Cohen's w, a measure of effect size for chi-square tests.
• Former Chapter 19 has been converted into Statistics Organizer
• To gain some insight regarding changes in the Tenth edition see Side by side comparison of table of contents.