Preface
Acknowledgments
About the Authors
Section I- Foundations of Design and Analysis
Chapter 1- The Scientific Method
Step 2: Read the Published Literature
Choose a Specific Question
Step 4: Collect and Analyze Data
Step 5: Answer the Research Question
Step 6: Share Your Results
Research in Psychology: APA Style
Chapter 2- Ethical Research
Ethical Treatment of Participants
Assessing Risk to Participants
Certification of Ethics Training
Testing of Special Populations
Treating Participants Ethically
Ethics After Testing Participants
Writing a Presentation or Manuscript
Presenting and Publishing Research
Who Is Harmed by Unethical Behavior?
Ethical Data-Collection Methods
Chapter 3- Research Designs and Variables
Summarizing Variables: Central Tendency
Summarizing Variables: Variability
SPSS: Summarizing Variables
Chapter 4- Learning About a Population From a Sample
Stratified Random Sampling
Section II- Categorical Variables and Simple Frequency
Chapter 5- One Variable With Frequency Data
Research Design: Categorizing Participants
One-Way Chi Square With Equal Expected Frequencies
SPSS: One-Way Chi Square With Equal Expected Frequencies
APA Style for the One-Way Chi Square With Equal Expected Frequencies
One-Way Chi Square With Unequal Expected Frequencies
SPSS: One-Way Chi Square With Unequal Expected Frequencies
APA Style for the One-Way Chi Square With Unequal Expected Frequencies
Chapter 6- Two Variables With Frequency Data
Research Design: Two Categorical Variables
Two-Way Chi Square: 2 × 3 Design
Effect Size: Contingency Coefficient and Cramer’s V
APA Style for the 2 × 3 Chi Square
Two-Way Chi Square: 2 × 2 Design
Effect Size: Phi Coefficient
APA Style for the 2 × 2 Chi Square
Section III- Research Without Grouping
Chapter 7- Examining Relationships
Pearson’s r: Seeking a Relationship
SPSS: Pearson’s r (Seeking a Relationship)
Graphs as Figures: Scatterplot
APA Style for Pearson’s r: Correlational Design
Pearson’s r: Seeking Cause and Effect
Previewing Data With a Scatterplot
SPSS: Pearson’s r (Seeking Cause and Effect)
Effect Size: Coefficient of Determination
APA Style for Pearson’s r: Experimental Design
When Pearson’s r Falsely Shows No Relationship
Outliers That Weaken Pearson’s r
When Pearson’s r Falsely Shows a Relationship
Restriction of Range on a Curvilinear Relationship
Outliers That Strengthen Pearson’s r
Chapter 8- Scale Development
Pearson’s r and Reliability of Measures
Alternate-Forms Reliability
Cronbach’s Alpha and Reliability of Measures
SPSS: Scoring and Interpreting Measures
Reliability With Subjective Measures: Interrater Reliability
Convergent Construct Validity
Discriminant Construct Validity
Chapter 9- Prediction
Prediction and Correlation
Linear Regression: Prediction Using One Predictor
APA Style for Linear Regression
Multiple Linear Regression: Prediction With Two Predictors
SPSS: Multiple Linear Regression
APA Style for Multiple Linear Regression
Section IV- Grouped Designs With Independent Samples
Chapter 10- One Variable With Two Independent Groups
Research Design: One IV With Two Levels
SPSS: Independent-Samples t-test With an IV
APA Style for the Independent-Samples t-test: Experimental Design
Graphs as Figures: Bar Graph
Using a Quasi-IV to Establish a Relationship
SPSS: Independent-Samples t-test With a Quasi-IV
APA Style for the Independent-Samples t-test: Correlational Design
Chapter 11- One Variable With More Than Two Independent Groups
Research Design: One IV With More Than Two Levels
SPSS: One-Way, Between-Groups ANOVA With an IV
APA Style for the One-Way, Between-Groups ANOVA: Experimental Design
Analyzing a Quasi-IV With More Than Two Levels
SPSS: One-Way, Between-Groups ANOVA With a Quasi-IV
APA Style for the One-Way, Between-Groups ANOVA: Correlational Design
Section V- Grouped Designs With Related Samples
Chapter 12- One Variable with Two Related Groups
Testing the Same People Twice
Problems With Testing the Same People Twice
Solving Order Problems by Counterbalancing
Research Design: One IV With Two Related Groups
SPSS: Related-Samples t-test (Experimental Design)
APA Style for the Related-Samples t-test: Experimental Design
Research Design: One Quasi-IV With Two Related Groups
SPSS: Related-Samples t-test (Correlational Design)
APA Style for the Related-Samples t-test: Correlational Design
Research Design: Testing Different People (Matched Pairs)
Matching in a Two-Condition Study
SPSS: Matched-Pairs t-test
APA Style for the Matched-Pairs t-test
Chapter 13- One Variable With Repeated Measures: More Than Two Groups
Research Design: One IV With Repeated Measures
SPSS: One-Way, Repeated-Measures ANOVA (Experimental Design)
APA Style for the One-Way, Repeated-Measures ANOVA: Experimental Design
Research Design: One Quasi-IV With Repeated Measures
SPSS: One-Way, Repeated-Measures ANOVA (Correlational Design)
APA Style for the One-Way, Repeated-Measures ANOVA: Correlational Design
Section VI- Advanced Design
Chapter 14- Two Variables With Independent Samples
Research Design: Two IVs With Independent Samples
SPSS: Two-Way, Between-Groups ANOVA (No Significant Interaction)
Post Hoc for a Main Effect
APA Style for Two-Way, Between-Groups ANOVA With Main Effects
Research Design: One IV and One Quasi-IV With Independent Groups
SPSS: Two-Way, Between-Groups ANOVA (Significant Interaction)
Examining the Interaction
Post Hoc for an Interaction
APA Style for the Two-Way, Between-Groups ANOVA With an Interaction
Appendices
Appendix A- Power Analysis Table
Appendix B- Graphing in Excel
Appendix C- APA-Style Manuscript Guidelines
Key Elements in APA-Style Writing
Tables, Figures, and Appendices
Common Mistakes and Tips for Writing
Example Paper With Comments
Example Paper Without Comments
Appendix D- Selected Answers to Practice Items
Appendix E- Glossary of Terms
Index