Cohen / Lea / Welkowitz | Introductory Statistics for the Behavioral Sciences | Buch | 978-1-394-23473-8 | www.sack.de

Buch, Englisch, 480 Seiten, Format (B × H): 216 mm x 272 mm, Gewicht: 1134 g

Cohen / Lea / Welkowitz

Introductory Statistics for the Behavioral Sciences


8. Auflage 2025
ISBN: 978-1-394-23473-8
Verlag: John Wiley & Sons Inc

Buch, Englisch, 480 Seiten, Format (B × H): 216 mm x 272 mm, Gewicht: 1134 g

ISBN: 978-1-394-23473-8
Verlag: John Wiley & Sons Inc


The accessible, hands-on statistics textbook that behavioral science students and instructors trust

Introductory Statistics for the Behavioral Sciences is a respected, practical textbook that offers carefully crafted exercises to support the teaching and learning of statistics. This revised eighth edition presents all the topics students in the behavioral sciences need in a uniquely accessible format, making statistics feel relevant and approachable. With fictitious yet realistic examples that reappear throughout the chapter, students can follow a continuous narrative that helps them engage with and internalize the content.

User-friendly integration with SPSS software enables readers to gain hands-on experience with the application of theoretical concepts. Exercises at the end of each chapter, with additional practice in the online study guide, give students the repetition they need to fully comprehend the material. After working through this textbook, students will understand, not only the what, but also the why of statistical analysis. - Get plain-English explanations of statistical concepts and procedures important in behavioral sciences research
- Learn from relatable examples and exercises focused on psychology, sociology, and other behavioral science
- Work through well-crafted exercises designed to enhance your understanding of the material
- Get clear instructions on how to perform statistical procedures with the industry-standard SPSS software

Online resources for instructors include a test bank, chapter quizzes, and PowerPoint slides. Introductory Statistics for the Behavioral Sciences also includes a student website containing additional basic math coverage, math review exercises, a study guide, a set of additional SPSS exercises, and downloadable data sets.

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Weitere Infos & Material


Preface xi

Acknowledgments xv

Glossary of Symbols xvii

Part I Descriptive Statistics 1

Chapter 1 Introduction 3

Why Study Statistics? 4

Descriptive and Inferential Statistics 5

Populations, Samples, Parameters, and Statistics 5

Measurement Scales 6

Independent and Dependent Variables 8

Summation Notation 10

Jackson’s Study 14

Summary 15

Exercises 16

Thought Questions 19

Computer Exercises 19

Bridge to SPSS 20

Chapter 2 Frequency Distributions and Graphs 22

Purpose of Descriptive Statistics 23

Regular Frequency Distributions 23

Cumulative Frequency Distributions 25

Grouped Frequency Distributions 27

Real and Apparent Limits 28

Graphic Representations 29

Skewing of Frequency Distributions 32

Summary 34

Exercises 35

Thought Questions 36

Computer Exercises 37

Bridge to SPSS 37

Chapter 3 Measures of Central Tendency and Variability 40

Introduction 41

The Mode 42

The Median 43

The Mean 44

The Concept of Variability 47

The Range 49

The Standard Deviation and Variance 50

Summary 55

Exercises 57

Thought Questions 58

Computer Exercises 58

Bridge to SPSS 59

Chapter 4 Standardized Scores and the Normal Distribution 61

Interpreting a Raw Score Revisited 62

Rules for Changing µ and s 63

Standard Scores (z-Scores) 64
T Scores, SAT Scores, and IQ Scores 67

The Normal Distribution 68

Table of the Standard Normal Distribution 70

Illustrative Examples 71

Summary 77

Exercises 78

Thought Questions 80

Computer Exercises 80

Bridge to SPSS 81

Part II Basic Inferential Statistics 83

Chapter 5 Introduction to Statistical Inference 85

Introduction 86

The Goals of Inferential Statistics 87

Sampling Distributions 87

The Standard Error of the Mean 93

The z-Score for Sample Means 95

Null Hypothesis Testing 96

Assumptions Required by the Statistical Test for the Mean of a Single Population 103

Why is Null Hypothesis Testing So Misunderstood? 104

Summary 105

Exercises 107

Thought Questions 108

Computer Exercises 108

Bridge to SPSS 109

Chapter 6 One-Sample t Test and Interval Estimation 110

Introduction 110

Statistical Test for the Mean of a Single Population When s Is Not Known: The t Distributions 111

Interval Estimation 115

Computation 116

Working with Proportions 118

Summary 121

Exercises 122

Thought Questions 123

Computer Exercises 123

Bridge to SPSS 124

Chapter 7 Testing Hypotheses About the Difference Between the Means of Two Populations 126

The Standard Error of the Difference 127

Estimating the Standard Error of the Difference 130

The t Test for Two Independent Sample Means 131

Confidence Intervals for µ 1 - µ 2 135

Measuring the Size of an Effect for a Difference Between Two Independent Samples 136

Reporting the Results of a t Test with a CI and a Measure of Effect Size 137

The Assumptions Underlying the Proper Use of the t Test for Two Sample Means 138

The t Test for Matched Samples 140

Summary 146

Exercises 148

Thought Questions 150

Computer Exercises 151

Bridge to SPSS 151

Chapter 8 Nonparametric Tests for the Difference Between Two Means 155

Introduction 156

The Difference Between the Locations of Two Independent Samples: The Rank-Sum Test 159

The Difference Between the Locations of Two Matched Samples: The Wilcoxon Test 163

Summary 167

Exercises 169

Thought Questions 172

Computer Exercises 172

Bridge to SPSS 172

Chapter 9 Linear Correlation 175

Introduction 176

Describing the Linear Relationship Between Two Variables 178

Interpreting the Magnitude of a Pearson r 184

When Is It Important That Pearson’s r Be Large? 190

Testing the Significance of the Correlation Coefficient 191

The Relationship Between Two Ranked Variables: The Spearman Rank-Order Correlation Coefficient 192

Summary 195

Exercises 196

Thought Questions 199

Computer Exercises 200

Bridge to SPSS 200

Appendix: Equivalence of the Various Formulas for r 203

Chapter 10 Prediction and Linear Regression 205

Introduction 206

Using Linear Regression to Make Predictions 206

Measuring Prediction Error: The Standard Error of Estimate 212

The Connection Between Correlation and the t Test 214

Estimating the Proportion of Variance Accounted for in the Population 219

Summary 220

Exercises 222

Thought Questions 224

Computer Exercises 224

Bridge to SPSS 225

Chapter 11 Introduction to Power Analysis 228

Introduction 229

Concepts of Power Analysis 230

Power Analysis for the Mean of a Single Population 231

Power Analysis for the Proportion of a Single Population 235

Power Analysis for a Pearson r 236

Power Analysis for the Difference Between Independent Means 237

Power Analysis for the Difference Between the Means of Two Matched Populations 241

Choosing a Value for d for a Power Analysis Involving Independent Means 242

Using Power Analysis Concepts to Interpret the Results of Null Hypothesis Tests 243

The Null Hypothesis Testing Controversy Revisited 244

Summary 245

Exercises 248

Thought Questions 250

Computer Exercises 250

Bridge to SPSS 251

Chapter 12 Beyond Traditional Null Hypothesis Testing 254

More on Criticisms of NHT (and Some Rebuttals) 254

Improving NHT with Robust Statistics 257

p Hacking, HARKing, and the “File Drawer Problem” 260

The Replication Crisis in Psychological Research and Possible Solutions 262

Alternatives to NHT (The “New” Statistics) 264

Summary 266

Thought Questions 267

Appendix: A Brief Introduction to the Use of Bayesian Statistics 268

Part III Analysis of Variance Methods 271

Chapter 13 One-Way Analysis of Variance 273

Introduction 274

The General Logic of ANOVA 275

Computational Procedures 278

Testing the F Ratio for Statistical Significance 281

Calculating the One-Way ANOVA From Means and Standard Deviations 282

Comparing the One-Way ANOVA With the t Test 284

A Simplified ANOVA Formula for Equal Sample Sizes 284

Effect Size for the One-Way ANOVA 285

Some Comments on the Use of ANOVA 287

A Nonparametric Alternative to the One-Way ANOVA: The Kruskal–Wallis H Test 289

Summary 291

Exercises 294

Thought Questions 297

Computer Exercises 297

Bridge to SPSS 297

Appendix: Proof That the Total Sum of Squares Is Equal to the Sum of the Between-Group and the Within-Group Sum of Squares 301

Chapter 14 Multiple Comparisons 302

Introduction 303

Fisher’s Protected t Tests and the Least Significant Difference (LSD) 303

Tukey’s Honestly Significant Difference (HSD) 307

Other Multiple Comparison Procedures 310

Planned and Complex Comparisons 311

Nonparametric Multiple Comparisons: The Protected Rank-Sum Test 313

Summary 314

Exercises 315

Thought Questions 316

Computer Exercises 316

Bridge to SPSS 317

Chapter 15 Introduction to Factorial Design: Two-Way Analysis of Variance 319

Introduction 320

Computational Procedures 321

The Meaning of Interaction 328

Following Up on a Significant Interaction 330

Measuring Effect Size in a Factorial ANOVA 332

Summary 333

Exercises 337

Thought Questions 339

Computer Exercises 339

Bridge to SPSS 340

Chapter 16 Repeated-Measures ANOVA 344

Introduction 345

Calculating the One-Way RM ANOVA 345

Rationale for the RM ANOVA Error Term 348

Assumptions and Other Considerations Involving the RM ANOVA 349

The RM Versus RB Design: An Introduction to the Issues of Experimental Design 351

The Two-Way Mixed Design 354

Summary 359

Exercises 363

Thought Questions 365

Computer Exercises 365

Bridge to SPSS 365

Part IV Nonparametric Statistics for Categorical Data 371

Chapter 17 Probability of Discrete Events and the Binomial Distribution 373

Introduction 373

Probability 374

The Binomial Distribution 377

The Sign Test for Matched Samples 381

Summary 382

Exercises 383

Exercises 385

Computer Exercises 385

Bridge to SPSS 385

Chapter 18 Chi-Square Tests 389

Introduction 389

Chi-Square and the Goodness of Fit: One-Variable Problems 390

Chi-Square as a Test of Independence: Two-Variable Problems 394

Measures of Strength of Association in Two-Variable Tables 399

Summary 401

Exercises 402

Thought Questions 404

Computer Exercises 404

Bridge to SPSS 405

Appendix 409

Statistical Tables 411

Answer Key 426

Data from Jackson’s Experiment 434

Glossary of Terms 435

References 444

Index 000


R. BROOKE LEA, PhD, is DeWitt Wallace Professor of Psychology and Director of Cognitive Science at Macalester College in Saint Paul, MN, where he has taught psychological statistics for more than 25 years. He is a cognitive psychologist who studies reasoning and language processing, with a special interest in the role that poetic devices—such as rhyme, alliteration, and meter—play in the comprehension of poetry.

BARRY H. COHEN, Ph.D. earned a B.S. in Physics and a Ph.D in experimental psychology. Until his retirement, he was the director of the MA program in psychology at NYU, and taught statistics and research design at the graduate level there for more than 30 years. He is now spending his active retirement by collaborating on meditation research.



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