Preface

Additional Resources for Scientific Inquiry

Acknowledements

Chapter 1 Definitions and Symbols

DESCRIPTIVE STATISTICS

Chapter 2 Central Tendency: Determining the Middle of a Group

of Numbers

Chapter 3 Variability: Determining the Spread of a Group of Data Points

INFERENTIAL STATISTICS

Chapter 4 Chi-Square Test for Goodness of Fit: Comparing How Frequencies Fall into Different Categories for a Single Variable

Chapter 5 Chi-Square Test for Independence: Using Frequencies

to Determine Whether Two Variables are Related

Chapter 6 Independent t-Test: Comparing the Means of Two

Independent Groups

Chapter 7 Dependent t-Test: Comparing the Means of Two

Dependent Groups

Chapter 8 Correlation Coefficient r: Testing for a Relationship

Between Two Variables

Chapter 9 Nonparametric Tests: Comparing Two Groups when

t-Test Conditions are not Satisfied

Appendices

Appendix A: Critical Values for the Chi-Square Test for Goodness of Fit

Appendix B: Critical Values for the Chi-Square Test for Independence

Appendix C: Critical Values for the t-Test

Appendix D: Critical Values for the F_max Test

Appendix E: Critical Values for Correlation Coefficient r

Appendix F: Critical Values for the Mann-Whitney U-Test

Appendix G: Critical Values for the Wilcoxon W-Test

Glossary

Index