Educational Research

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Educational Research

Educational Research Quantitative, Qualitative, and Mixed Approaches Fifth Edition

R. Burke Johnson University of South Alabama Larry Christensen University of South Alabama

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Copyright  2014 by SAGE Publications, Inc.

SAGE Publications, Inc.

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Educational research: Quantitative, qualitative, and mixed approaches / R. Burke Johnson, Larry Christensen. — Fifth edition. pages cm Includes bibliographical references and index. ISBN 978-1-4522-4440-2 (hardcover: alk. paper) 1. Education—Research. I. Title. LB1028.J59 2014 370.72—dc23   2013030678

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13 14 15 16 17 10 9 8 7 6 5 4 3 2 1

Brief Contents

Preface xxi Acknowledgments xxvii

Part I: Introduction   1.   Introduction to Educational Research

1 2

  2.   Quantitative, Qualitative, and Mixed Research

29

  3.   Action Research for Lifelong Learning

59

Part II: Planning the Research Study

81

  4.  How to Review the Literature and Develop Research Questions

82

  5.   How to Write a Research Proposal

111

  6.   Research Ethics

124

Part III: Foundations of Research

157

  7.   Standardized Measurement and Assessment

158

  8.   How to Construct a Questionnaire

190

  9.   Six Major Methods of Data Collection

223

10.   Sampling in Quantitative, Qualitative, and Mixed Research

247

11.  Validity of Research Results in Quantitative, Qualitative, and Mixed Research 277

Part IV: Selecting a Research Method Section A: Quantitative Research Methods: Five Major Approaches 12.   Experimental Research: Weak and Strong Designs

317 318 318

13.  Experimental Research: Quasi and Single-Case Designs

355

14.   Nonexperimental Quantitative Research

384

Section B: Qualitative Research Methods: Five Major Approaches Plus Historical Research

417

15.   Narrative Inquiry and Case Study Research

417

D. Jean Clandinin and R. Burke Johnson 16.   Phenomenology, Ethnography, and Grounded Theory

442

17.   Historical Research

466

Section C: Mixed Methods Research: Many Approaches 18.   Mixed Research

485 485

Part V: Analyzing the Data

515

19.   Descriptive Statistics

516

20.   Inferential Statistics

548

21.   Data Analysis in Qualitative and Mixed Research

586

Part VI: Writing the Research Report

619

22.  How to Prepare a Research Report and Use APA Style Guidelines

620

Appendix: Citations for Journal Articles Noted in the Margins

651

Glossary 657 References 677 Author Index

690

Subject Index

695

About the Authors

712

Detailed Contents

Preface xxi Acknowledgments xxvii

Part I: Introduction

1

1

Introduction to Educational Research

2

Why Study Educational Research?  4 Areas of Educational Research  5 Examples of Educational Research  8 General Kinds of Research  9 Basic and Applied Research  9 Evaluation Research  10 Action Research  11 Orientational Research  11 Sources of Knowledge  12 Experience 12 Reasoning 13 The Scientific Approach to Knowledge Generation  14 Dynamics of Science  14 Basic Assumptions of Science  15 Scientific Methods  17 Theory 19 The Principle of Evidence  20 Objectives of Educational Research  22 Overview of Book  25 Summary 26 Key Terms  26 Discussion Questions  26 Research Exercises  27 Relevant Internet Sites  27 Recommended Reading  28

2

Quantitative, Qualitative, and Mixed Research

29

Characteristics of the Three Research Paradigms  33 Quantitative Research Methods: Experimental and Nonexperimental Research  38 Variables 39

Experimental Research  42 Nonexperimental Research  43 Qualitative Research Methods  49 Phenomenology 49 Ethnography 49 Narrative Inquiry  50 Case Study Research  50 Grounded Theory  51 Historical Research  51 Mixed Research (or Mixed Methods Research)  52 The Advantages of Mixed Research  53 Our Research Typology  53 Summary 55 Key Terms  55 Discussion Questions  56 Research Exercises  56 Relevant Internet Sites  57 Recommended Reading  57

3

  Action Research for Lifelong Learning

59

Defining Action Research  60 Origins of Action Research  61 Basic Scientific Research Versus Action Research  64 Types of Action Research  66 The Cycle of Action Research  71 Strengths and Weaknesses of Action Research  74 Action Research Journaling  75 Action Research in the Remaining Chapters of this Book  77 Summary 77 Key Terms  78 Discussion Questions  78 Research Exercises  78 Relevant Internet Sites  78 Recommended Reading  79 Note 79

Part II: Planning the Research Study

4

How to Review the Literature and Develop Research Questions Sources of Research Ideas  84 Everyday Life  84 Practical Issues  84 Past Research  85 Theory 86

81 82

Ideas That Can’t Be Resolved Through Empirical Research  86 Review of the Literature  88 Literature Review for Quantitative Research Studies  88 Literature Review for Qualitative Research Studies  88 Sources of Information  90 Conducting the Literature Search  91 Using Databases  91 Using the Public Internet  91 Feasibility of the Study  95 Statement of the Research Problem  95 Stating a Quantitative Research Problem  96 Stating a Qualitative Research Problem  96 Statement of the Purpose of the Study  97 Statement of Purpose in a Quantitative Study  97 Statement of Purpose in a Qualitative Study  98 Statement of Research Questions  98 Statement of a Quantitative Research Question  99 Statement of a Qualitative Research Question  99 Formulating Hypotheses  101 Consumer Use of the Literature  103 Action Research Reflection  106 Summary 107 Key Terms  108 Discussion Questions  108 Research Exercises  108 Relevant Internet Sites  109 Recommended Reading  110

5

How to Write a Research Proposal Framework of the Research Proposal  113 Strategies for Writing Each Section of the Research Proposal  113 Introduction 113 Method 115 Research Participants  116 Design 116 Apparatus and/or Instruments  117 Procedure 118 Data Analysis  119 Abstract 120 Action Research Reflection  121 Summary 121 Key Terms  122 Discussion Questions  122 Research Exercise  122 Relevant Internet Sites  122 Recommended Reading  123

111

6

Research Ethics

124

What Are Research Ethics?  126 Ethical Concerns  127 Relationship Between Society and Science  127 Professional Issues  128 Treatment of Research Participants  130 Ethical Guidelines for Research With Humans  132 Informed Consent  133 Informed Consent and Minors as Research Participants  136 Passive Versus Active Consent  137 Additional Consent  139 Deception 139 Freedom to Withdraw  140 Protection From Mental and Physical Harm  140 Confidentiality, Anonymity, and the Concept of Privacy  141 Institutional Review Board  142 Ethical Issues in Electronic Research  147 Informed Consent and Internet Research  148 Privacy and Internet Research  148 Debriefing and Internet Research  149 Ethical Issues in Preparing the Research Report  149 Authorship 150 Writing the Research Report  150 Action Research Reflection  151 Summary 152 Key Terms  153 Discussion Questions  153 Research Exercises  154 Relevant Internet Sites  154 Recommended Reading  155

Part III: Foundations of Research

7

Standardized Measurement and Assessment Defining Measurement  160 Scales of Measurement  160 Nominal Scale  161 Ordinal Scale  161 Interval Scale  162 Ratio Scale  163 Assumptions Underlying Testing and Assessment  164 Identifying a Good Test or Assessment Procedure  165 Overview of Reliability and Validity  165 Reliability 166 Validity 172 Using Reliability and Validity Information  178

157 158

Educational and Psychological Tests  178 Intelligence Tests  179 Personality Tests  179 Educational Assessment Tests  181 Sources of Information About Tests  183 Action Research Reflection  185 Summary 185 Key Terms  186 Discussion Questions  186 Research Exercises  186 Exercise Sheet  187 Relevant Internet Sites  188 Recommended Reading  189 Notes 189

8

How to Construct a Questionnaire What Is a Questionnaire?  191 Principles of Questionnaire Construction  194 Principle 1. Make sure the questionnaire items match your research objectives.  194 Principle 2. Understand your research participants.  194 Principle 3. Use natural and familiar language.  194 Principle 4. Write items that are clear, precise, and relatively short.  195 Principle 5. Do not use “leading” or “loaded” questions.  196 Principle 6. Avoid double-barreled questions.  197 Principle 7. Avoid double negatives.  197 Principle 8. Determine whether an open-ended or a closed-ended question is needed. 198 Principle 9. Use mutually exclusive and exhaustive response categories for closed-ended questions.  200 Principle 10. Consider the different types of response categories available for closed-ended questionnaire items.  201 Principle 11. Use multiple items to measure abstract constructs.  207 Principle 12. Consider using multiple methods when measuring abstract constructs.  208 Principle 13. Use caution if you reverse the wording in some of the items to prevent response sets in multi-item scales.  209 Principle 14. Develop a questionnaire that is properly organized and easy for the participant to use.  209 Principle 15. Always pilot test your questionnaire.  212 Putting It All Together  214 Action Research Reflection  220 Summary 220 Key Terms  220 Research Exercises  221 Relevant Internet Sites  221 Recommended Reading  222 Notes 222

190

9

Six Major Methods of Data Collection

223

Tests 227 Questionnaires 227 Interviews 228 Quantitative Interviews  229 Qualitative Interviews  233 Focus Groups  234 Observation 236 Quantitative Observation  237 Qualitative Observation  238 Visual Data  241 Constructed and Secondary or Existing Data  243 Action Research Reflection  244 Summary 244 Key Terms  245 Discussion Questions  245 Research Exercises  246 Relevant Internet Site  246 Recommended Reading  246

ampling in Quantitative, Qualitative, and 10 SMixed Research Terminology Used in Sampling  250 Random Sampling Techniques  251 Simple Random Sampling  251 Systematic Sampling  255 Stratified Random Sampling  258 Cluster Random Sampling  261 Nonrandom Sampling Techniques  263 Convenience Sampling  263 Quota Sampling  264 Purposive Sampling  264 Snowball Sampling  265 Random Selection and Random Assignment  265 Determining the Sample Size When Random Sampling Is Used  266 Sampling in Qualitative Research  269 Sampling in Mixed Research  271 Action Research Reflection  273 Summary 273 Key Terms  274 Discussion Questions  274 Research Exercises  275 Relevant Internet Sites  275 Recommended Reading  276 Notes 276

247

11 Validity of Research Results in Quantitative, Qualitative, and Mixed Research

277

Validity Issues in the Design of Quantitative Research  279 Internal Validity (or Causal Validity)  281 Two Major Types of Causal Relationships  281 Criteria for Inferring Causation  282 Threats to Internal Validity in Single-Group Designs   284 Threats to Internal Validity in Multigroup Designs   288 External Validity (or Generalizing Validity)  291 Population Validity  291 Ecological Validity  294 Temporal Validity  294 Treatment Variation Validity  294 Outcome Validity  295 Construct Validity  295 Operationalism 296 Treatment Diffusion  297 Statistical Conclusion Validity  298 Research Validity (or “Trustworthiness”) in Qualitative Research  299 Descriptive Validity  300 Interpretive Validity  300 Theoretical Validity  302 Internal Validity  303 External Validity  305 Research Validity (or “Legitimation”) in Mixed Research  309 Action Research Reflection  312 Summary 312 Key Terms  314 Discussion Questions  314 Research Exercises  315 Relevant Internet Sites  315 Recommended Reading  316 Notes 316

Part IV: Selecting a Research Method

317

Section A: Quantitative Research Methods: Five Major Approaches

318

12 Experimental Research: Weak and Strong Designs

318

The Experiment  320 Experimental Research Settings  320 Field Experiment  321 Laboratory Experiment  321 Internet Experiment  321

Independent Variable Manipulation  322 Ways to Manipulate an Independent Variable  322 Control of Confounding Variables  323 Random Assignment  324 Matching 326 Holding the Extraneous Variable Constant  328 Building the Extraneous Variable Into the Research Design  329 Analysis of Covariance  329 Counterbalancing 330 Experimental Research Designs  332 Weak Experimental Research Designs  332 Strong Experimental Research Designs  337 Factorial Designs  342 Repeated-Measures Designs  348 Factorial Designs Based on a Mixed Model  350 Action Research Reflection  351 Summary 351 Key Terms  352 Discussion Questions  353 Research Exercises  353 Relevant Internet Sites  354 Recommended Reading  354 Notes 354

13 Experimental Research: Quasi and Single-Case Designs

355

Quasi-Experimental Research Designs   357 Nonequivalent Comparison-Group Design  358 Interrupted Time-Series Design  363 Regression-Discontinuity Design  367 Single-Case Experimental Designs  370 A-B-A and A-B-A-B Designs  371 Multiple-Baseline Design  374 Changing-Criterion Design  377 Methodological Considerations in Using Single-Case Designs  379 Action Research Reflection  379 Summary 380 Key Terms  380 Discussion Questions  380 Research Exercises  381 Relevant Internet Sites  382 Recommended Reading  382 Note 383

14 Nonexperimental Quantitative Research Steps in Nonexperimental Research  387 Independent Variables in Nonexperimental Research  387

384

Simple Cases of Nonexperimental Quantitative Research  388 Three Required Conditions for Cause-and-Effect Relationships  390 Applying the Three Required Conditions for Causation in Nonexperimental Research  392 Techniques of Control in Nonexperimental Research (i.e., How to Design Strong Nonexperimental Research)  396 Matching 396 Holding the Extraneous Variable Constant  398 Statistical Control  398 Interlude (The Study of Causal Relationships in Epidemiology)  400 Classifying Nonexperimental Research by Time and Research Objective  401 The Time Dimension in Nonexperimental Research  402 Cross-Sectional Research  403 Longitudinal Research  404 Retrospective Research  406 The Research Objective Dimension in Nonexperimental Research   407 Descriptive Nonexperimental Research  407 Predictive Nonexperimental Research  408 Explanatory Nonexperimental Research  409 Action Research Reflection  413 Summary 413 Key Terms  414 Discussion Questions  414 Research Exercises  415 Relevant Internet Sites  416 Recommended Reading  416 Notes 416

Section B: Qualitative Research Methods: Five Major Approaches Plus Historical Research

417

15 Narrative Inquiry and Case Study Research

417

Narrative Inquiry  425 I. Introduction: The Importance of Coming to Terms and Definitions  425 II. Designing a Narrative Study   426 1. Four Key Terms to Structure a Narrative Inquiry  427 2. Inquiry Starting Points  427 3. Attending to Justifications at the Inquiry Outset and Throughout the Inquiry  428 4. Research Puzzles Rather Than Research Questions  429 5. Entering Into the Midst  429 6. From Field to Field Texts  430 7. From Field Texts to Interim and Final Research Texts  431

8. Relational Ethics at the Heart of Narrative Inquiry—Relational Responsibilities  432 III. Narrative Inquiry: So Much More Than Telling Stories  433 Case Study Research  434 What Is a Case?  434 Types of Case Study Research Designs  435 Data Collection, Analysis, and Report Writing  437 Action Research Reflection  438 Summary 439 Key Terms  439 Discussion Questions  440 Research Exercises  440 Exercise Sheet  440 Relevant Internet Sites  441 Recommended Reading  441 Note 441

16 Phenomenology, Ethnography, and Grounded Theory

442

Phenomenology 444 Examples of Phenomenology  445 Types of Phenomenology  445 Data Collection, Analysis, and Report Writing  447 Ethnography 449 The Idea of Culture  450 Examples of Ethnographic Research  451 Types of Ethnographic Research  452 Data Collection, Analysis, and Report Writing  453 Grounded Theory  456 Characteristics of a Grounded Theory  457 Example of a Grounded Theory  458 Data Collection, Analysis, and Report Writing  458 Action Research Reflection  462 Summary 463 Key Terms  463 Discussion Questions  463 Research Exercises  463 Exercise Sheet  464 Relevant Internet Sites  465 Recommended Reading  465 Note 465

17 Historical Research What Is Historical Research?  468 Significance of Historical Research  468 Historical Research Methodology  470 Identification of the Research Topic and Formulation of the Research Problem or Question  471

466

Data Collection or Literature Review  472 Documents and Other Written Records  473 Photographs 473 Relics 473 Oral Histories  473 How to Locate Historical Information  474 Primary Versus Secondary Sources  475 Evaluation of Historical Sources  476 External Criticism  476 Internal Criticism  477 Data Synthesis and Report Preparation  479 Action Research Reflection  481 Summary 481 Key Terms  482 Discussion Questions  482 Research Exercises  483 Relevant Internet Sites  483 Recommended Reading  484

Section C: Mixed Methods Research: Many Approaches

485

18 Mixed Research

485

The Research Continuum  495 Types of Mixed Research Designs  496 Examples of Qualitatively Driven, Quantitatively Driven,    and Equal-Emphasis or Interactive Studies  498 Stages of the Mixed Research Process  500 Step 1. Determine Whether a Mixed Design   Is Appropriate  501 Step 2. Determine the Rationale for Using a Mixed Design  502 Step 3. Select or Construct the Mixed Research Design and Mixed Sampling Design  503 Step 4. Collect Data  504 Step 5. Analyze the Data  504 Step 6. Continually Validate the Data  505 Step 7. Continually Interpret the Data and Findings  505 Step 8. Write the Research Report  506 Limitations of Mixed Research  507 Action Research Reflection  508 Summary 511 Key Terms  512 Discussion Questions  512 Research Exercises  512 Relevant Internet Sites  513 Recommended Reading  514

Part V: Analyzing the Data

19 Descriptive Statistics

515 516

Descriptive Statistics  518 Frequency Distributions  520 Graphic Representations of Data  521 Bar Graphs  521 Histograms 522 Line Graphs  523 Scatter Plots  523 Measures of Central Tendency  525 Mode 525 Median 525 Mean 526 A Comparison of the Mean, Median, and Mode  527 Measures of Variability  530 Range 530 Variance and Standard Deviation  531 Standard Deviation and the Normal Distribution  532 Measures of Relative Standing  533 Percentile Ranks  534 z Scores  536 Examining Relationships Among Variables  537 Contingency Tables  538 Regression Analysis  540 Action Research Reflection  544 Summary 544 Key Terms  545 Discussion Questions  545 Research Exercises  545 Relevant Internet Sites  546 Recommended Reading  547 Notes 547

20 Inferential Statistics Sampling Distributions  551 Sampling Distribution of the Mean  553 Estimation 555 Point Estimation  555 Interval Estimation  556 Hypothesis Testing  558 Null and Alternative Hypotheses  560 Directional Alternative Hypotheses  562 Examining the Probability Value and Making a Decision  563

548

The Hypothesis-Testing Decision Matrix  568 Controlling the Risk of Errors  570 Hypothesis Testing in Practice  572 t Test for Independent Samples  573 One-Way Analysis of Variance  574 Post Hoc Tests in Analysis of Variance  575 t Test for Correlation Coefficients  576 t Test for Regression Coefficients  577 Chi-Square Test for Contingency Tables  578 Other Significance Tests  580 Action Research Reflection  581 Summary 581 Key Terms  582 Discussion Questions  582 Research Exercises  583 Exercise Sheet  584 Relevant Internet Sites  584 Recommended Reading  584 Notes 585

21 Data Analysis in Qualitative and Mixed Research Interim Analysis  588 Memoing 588 Analysis of Visual Data  589 Data Entry and Storage  591 Segmenting, Coding, and Developing Category Systems  592 Inductive and A Priori Codes  596 Co-Occurring and Facesheet Codes  598 Enumeration 598 Creating Hierarchical Category Systems  600 Identifying Relationships Among Categories  603 Drawing Diagrams  606 Corroborating and Validating Results  608 Computer Programs for Qualitative Data Analysis  608 Data Analysis in Mixed Research  610 Mixed Analysis Matrix  611 Analytical Procedures in Mixed Data Analysis  613 Action Research Reflection  614 Summary 614 Key Terms  615 Discussion Questions  615 Research Exercise  615 Exercise Sheet  616 Relevant Internet Sites  617 Recommended Reading  617 Notes 618

586

Part VI: Writing the Research Report

619

to Prepare a Research Report and 22 HUseowAPA Style Guidelines

620

General Principles Related to Writing the Research Report (I)  622 Language (I.1)  622 Editorial Style (I.2)  624 Reference List (I.3)  628 Typing (I.4)  629 Writing an APA-Style Quantitative Research Report (II)  629 Title Page (II.1)  629 Abstract (II.2)  630 Introduction (II.3)  630 Method (II.4)  631 Results (II.5)  632 Discussion (II.6)  632 References (II.7)  633 Footnotes (II.8)  633 Tables (II.9)  633 Figures (II.10)  634 Example of an APA-Style Manuscript  635 Writing Qualitative Research Reports  645 Writing Mixed Research Reports   648 Action Research Reflection  649 Summary 649 Key Term  650 Discussion Questions  650 Research Exercises  650 Relevant Internet Sites  650 Recommended Reading  650

Appendix: Citations for Journal Articles Noted in the Margins

651

Glossary 657 References 677 Author Index

690

Subject Index

695

About the Authors

712

Preface

W

elcome to the fifth edition of Educational Research: Quantitative, Qualitative, and Mixed Approaches. This text is written for the introductory research methods course that is required in most colleges in the United States. We assume no prior knowledge of research methods on the part of our readers. Our book can be used as a first text for undergraduate- or graduate-level courses. Instructors should be able to cover the material in one semester. Instructors also can choose to emphasize some material over the other.

Purpose We had several purposes in writing this textbook. The first was a desire to write an introductory research methods book that was accurate and up-to-date. We come from interdisciplinary backgrounds and have attempted to incorporate our respective insights into this book. Dr. Johnson is an educational research methodologist and program evaluator, with additional graduate training in psychology, public policy, and sociology; Dr. Christensen is a psychological research methodologist and the author of a highly successful book entitled Experimental Methodology (now in its 12th edition under the title Research Methods, Design, and Analysis). We have kept up with the changes taking place in the field of research methods in our disciplines, and we continue to incorporate the latest information in this textbook, including references that allow interested readers to further examine original sources. Second, we have tried to write a research methods textbook that takes an evenhanded approach to the different types of educational research. Whereas many texts emphasize one method at the expense of others, we believe that all major approaches to research discussed in this text have merit when they are employed carefully and properly. We show the strengths and appropriateness of each method and demonstrate how the experts in each area conduct high-quality research and how they view their approach to research. Third, we have tried to make our textbook highly readable and to make learning about research fun. Believe it or not, learning about research methods can be exciting. We are excited about research methods, and we share our enthusiasm with you without losing the necessary rigor. Finally, we have tried to enable readers to become critical consumers of research and users of research. We suspect that most readers of this text will be called on at some point in their careers to summarize research literature, write a research proposal, construct a questionnaire, or test an idea empirically. Educational Research, fifth edition, will help prepare you for these activities and will help you become adept at reading, understanding, critiquing, and building on published empirical research articles. xxi

x x i i   E d u c a t i o n a l R e s e a r c h

Organization of the Book We have organized the fifth edition of Educational Research to follow the major components or steps involved in the research process.

Part I. Introduction In this section we introduce you to the field of educational research. We begin by defining science in an inclusive way and explaining the general research process. We discuss inductive and deductive reasoning, and we describe the exploratory (knowledge-generation) and confirmatory (knowledge-testing) components of the research wheel. We outline some general areas of research, such as basic research, applied research, action research, evaluation research, and orientational research. We examine the three major research paradigms: (1) quantitative research, (2) qualitative research, and (3) mixed research. Last, we include a new chapter on action research to engage students in thinking about and applying the ideas discussed in this book. Each of the remaining 19 chapters ends with a section entitled “Action Research Reflection”—the purpose of this section is to help students reflect on the chapter material and relate it to their lives and places of work.

Part II. Planning the Research Study In this section we carefully explain how to come up with a research idea, conduct a review of the research literature, write research questions and hypotheses, and organize and write a research proposal. We also explain the importance of ethics in educational research and how to write an informed consent form. Upon completion of this section, students will be ready to begin writing a research proposal.

Part III. Foundations of Research In Part III we cover concepts that researchers must master before fully understanding or conducting a research study. We begin with an introduction to measurement. Without reliable and valid measurement, nothing else really matters because poor data quality cannot be fixed. Next we discuss the six major methods of data collection: tests, questionnaires, interviews, focus groups, observations, and constructed and secondary or existing data. We then explain the procedures for selecting samples of people to participate in a research study. Finally, we discuss the importance of research validity (or trustworthiness or legitimation) in quantitative, qualitative, and mixed research, showing the primary threats to good research and providing specific techniques used to prevent mistakes.

Part IV. Selecting a Research Method In Part IV we provide extensive discussion of the major methods of research or “research methods” and demonstrate how to match the appropriate research design with various research questions. We divide Part IV into three sections. In Section A we explain the five major approaches to quantitative research—strong experimental research, quasi-experimental research, weak experimental research, single-case research, and nonexperimental quantitative



Prefac e 

research. In Section B we explain the five major approaches to qualitative research—narrative inquiry, case study research, phenomenology, ethnography, and grounded theory. In this section, we also explain historical research. In Section C we explain mixed methods research, which includes many approaches and possibilities.

Part V. Analyzing the Data In this section we provide two chapters on quantitative data analysis (descriptive and inferential statistics) and one chapter on how to analyze qualitative and mixed research data.

Part VI. Writing the Research Report In this final part, we explain how to prepare research manuscripts in a format that can be submitted to an academic journal for publication. We explain how to use the guidelines from the 6th edition of the Publication Manual of the American Psychological Association (2010), the guidelines required by the vast majority of journals in education and psychology.

Features of the Text We have included several features in the fifth edition of Educational Research to make the task of learning about research easier for students. In addition to opening vignettes that connect research with current events, each chapter begins with a list of objectives to get students thinking about what they are going to learn. Within the chapters, several learning aids assist with reviewing key concepts. These include margin definitions of all the key terms, multiple examples of concepts from published research studies, review questions at the end of major sections, and margin icons to connect the reader to journal articles and tools and tips provided at the book’s companion website. Each chapter ends with a full chapter summary, a list of the key terms used in the chapter, discussion questions, research exercises, relevant Internet sites, and recommended reading.

New to the Fifth Edition We have made multiple changes in the fifth edition to better reflect the latest advances in educational research and to improve the student learning experience. The following are of particular note: •• Added a new chapter early in the book (Chapter 3) entitled “Action Research for Lifelong Learning.” The purpose of this chapter is to make learning about research relevant to students and emphasize how to think about conducting regular scientific research and action research (which is more locally focused). •• Added a section in Chapters 4 through 22 directly before the chapter summary entitled “Action Research Reflection.” This is designed to engage students in thinking about the material in each chapter and applying it in their lives and work.

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x x i v   E d u c a t i o n a l R e s e a r c h •• In Chapter 6, updated the AERA ethical code to the most recent version (i.e., 2011) and added definitions of nonmaleficence and beneficence. •• In Chapter 9, the last of the six major methods of data collection is now labeled “Constructed and Secondary or Existing Data.” •• In Chapter 11, updated material on triangulation and added a validity strategy for qualitative research called “critical friend.” •• Divided “Part IV: Selecting a Research Method” into three sections. Section A is entitled “Quantitative Research Methods: Five Major Approaches”; Section B is “Qualitative Research Methods: Five Major Approaches Plus Historical Research”; and Section C is “Mixed Methods Research: Many Approaches.” •• Added a chapter titled “Narrative Inquiry and Case Study Research.” Chapter 15 is cowritten by one of the leading narrative inquiry experts in the world, D. Jean Clandinin, along with R. Burke Johnson. •• In Chapter 18, added an explanation of how to construct a mixed design in addition to selecting one of the basic designs.

Ancillaries for Instructors and Students Additional ancillary materials further support and enhance the learning goals of the fifth edition of Educational Research: Quantitative, Qualitative, and Mixed Approaches. These ancillary materials include the following:

Password-Protected Instructor Teaching Site www.sagepub.com/bjohnson5e/ This password-protected site offers instructors a variety of resources that supplement the book material, including the following: •• An electronic test bank, available to PCs through Respondus software, offers a large and diverse set of test questions and answers for each chapter of the book (the total number is more than 1,500!). Multiple-choice and true/false questions are included for every chapter to aid instructors in assessing students’ progress and understanding. •• PowerPoint presentations are designed to assist with lecture and review, highlighting essential content, features, and artwork from the book. •• Carefully selected, web-based video resources feature relevant content for use in independent and classroom-based exploration of key topics. •• Teaching tips are designed to help instructors conceptualize their overall teaching plan for each chapter. •• Lecture notes summarize key concepts on a chapter-by-chapter basis to assist in preparing for lecture and class discussion. •• Lively and stimulating ideas for class activities in and out of the classroom are provided. These are designed to reinforce active learning. •• Links to relevant web resources direct instructors to additional tools for further research on important chapter topics. •• Downloadable versions of the tables, figures, and worksheets are provided. •• The authors have provided suggested answers to the review questions that are found throughout each chapter. •• Sample syllabi for quarter, semester, and online courses are provided.



Preface 

Open-Access Student Study Site www.sagepub.com/bjohnson5e/ This web-based student study site provides a variety of additional resources to enhance students’ understanding of the book’s content and take their learning one step further. The site includes the following: •• Lecture notes are here for students to print out and bring to class. •• Self-quizzes allow students to independently assess their progress in learning course material. •• eFlashcards are study tools that reinforce student understanding and learning of the key terms and concepts outlined in the chapters. •• Carefully selected, web-based video links feature relevant content for use in independent and classroom-based exploration of key topics. •• Links to relevant web resources direct students to additional tools for further research on important chapter topics. •• A downloadable PDF version of the full glossary is a convenient reference for students.

Book Icons Below are several icons you will find throughout the text, which will guide you to additional materials found on the student study site. Interactive and expandable concept maps for each chapter. These clickable, downward-branching maps present each chapter’s content in a hierarchical structure so that students can visualize the relationships among different concepts. Full-text SAGE research articles are presented for each chapter so that students can identify the key topics covered. Author-created tools and tips provide information on a variety of subjects and include helpful web resources, writing tips, and an SPSS data set.

Note to Students You are probably wondering how best to study research methods. Note that in addition to reading the book, you can now also listen to the book, for example, while you drive to work and school, jog, do laundry, or whatever. When studying, first and foremost, use the book’s companion website, which has been developed to help you learn the material. As you read the book, we suggest that you begin each chapter by reading the learning objectives and the chapter summary. This will give you an overview of the material. Then look at the chapter concept map included at the book’s companion website. Next, read the chapter carefully. After finishing the chapter, answer the study questions and make sure you understand each concept shown in the concept map. Also, read the lecture provided at the companion website, where we touch on most of the major points of each chapter; this will be quick reading after having read the chapter. To get practice doing research and to learn by doing, complete at least one of the research exercises at the end of each chapter and consider completing the

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x x v i   E d u c a t i o n a l R e s e a r c h action research activities. As you prepare for tests, make sure that you know the definitions of all the key terms because these are the building blocks and the vocabulary of the research “language.” Don’t get lost in the details. Continue to use the concept maps to remind yourself of the big picture. Finally, read as many of the empirical research articles as you can, because one of the best ways to learn how to understand, design, and conduct educational research is to read many high-quality, published research articles in your research area. If you do these things, you can become an expert consumer and producer of research, as well as get an A in your class!

Note to Instructors To help keep the length and price of the textbook low for students, we have placed the many supporting empirical research articles on the companion website (rather than including them in the textbook). Your students can easily print out these articles. Also, you will find many helpful teaching tips and materials at the Instructor Teaching Site described above. You also will find the student companion website useful, especially the lectures and the concept maps. One effective in-class teaching strategy would be to connect to the concept maps (via the Internet) during class and discuss these in class. Another strategy is to have your students print out the lectures and then discuss the lectures in class. Yet another strategy is to use the PowerPoint presentations provided at the Instructor Teaching Site. This text also works very well online; the lectures on the companion website were developed by Burke Johnson specifically for his online research course. Our goal is to provide you with the most up-to-date and useful book and the best set of supplements available. Please contact us if you have any questions or suggestions.

Comments We hope that you (students and instructors) will send your comments to us so that we can continually improve our textbook and the companion website. You can contact us at the following email address: [email protected] (Burke Johnson).

Acknowledgments

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irst and foremost, Burke Johnson would like to thank his wife, Dr. Lisa A. Turner, for putting up with the long days and for being the first reviewer of everything he wrote. Second, we offer our sincere and special thanks to Diane McDaniel (associate director), Reid Hester (senior editor), Terri Accomazzo (associate editor), Sarita Sarak (editorial assistant), and Rachael Leblond (digital content editor). Thanks also go to our outstanding copy editor, Paula L. Fleming, and our production editor, Laura Barrett, who meticulously worked with us to get the manuscript into its “perfect” final form. In short, we thank the entire SAGE team for their professionalism, friendliness, emphasis on high-quality work, and openness to innovation—everyone at SAGE was always ready to provide ideas and help when it was needed. We repeat our previous thanks to John Hitchcock, of Ohio University, for contributing a table to the last edition (and continued in the present edition) on Applying Qualitative Research Validity Strategies (Table 11.3). We also repeat our thanks to our colleagues for working with Burke on several sections in past editions, including Tony Onwuegbuzie (Sam Houston State University), who was the original coauthor of the chapter on mixed methods research; Jack Dempsey (University of South Alabama); and Teresa Wagner (Case Western Reserve University). Most importantly, we thank our students for their very important thoughts on how to improve the book from their perspectives. Finally, we offer our gratitude and thanks to our expert reviewers for their many insights and useful comments. Our reviewers are as follows:

First edition reviewers: Amy Gillet, University of Wisconsin–Stout Bill Gilley, University of South Alabama Bryan Griffin, Georgia Southern University Beverly A. Joyce, Dowling College Robert W. Lissitz, University of Maryland at College Park Joe Newman, University of South Alabama

Joan Quilling, University of Missouri– Columbia Thomas A. Romberg, University of Wisconsin Bikas Sinha, Indian Statistical Institute, Calcutta, India Paul Westmeyer, The University of Texas at San Antonio

Doris L. Prater, University of Houston–Clear Lake

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Second edition reviewers: Kathy Green, University of Denver Tony Onwuegbuzie, University of South Florida Shaireen Rasheed, Long Island University

Vemelle Tyler, University of South Carolina– Aiken Daniel Weigel, Southern Oklahoma State University

Third edition reviewers: Don Dillman, Washington State University

John Hanes, Regent University

Jim Van Haneghan, University of South Alabama

John A. Huss, Northern Kentucky University

Jason D. Baker, Regent University Ronald S. Beebe, Cleveland State University Dorinda J. Gallant, The Ohio State University

David R. Kovach, The University of Toledo Vincent Rinaldo, Niagara University Sandra L. Stein, Rider University Wilford A. Weber, University of Houston

Fourth edition reviewers: Jeff Lorentz, University of Houston–Clear Lake Rebecca S. Lake, National Louis University

David R. Kovach, University of Toledo Jamie Branam Kridler, East Tennessee State University

E. Lea Witta, University of Central Florida

Fifth edition reviewers: Diane Bagwell, University of West Florida Denetta Dowler, West Virginia University Cynthia L. Jew, California Lutheran University Shlomo S. Sawilowsky, Wayne State University Jennifer Veltsos, Minnesota State University Lihshing Leigh Wang, University of Cincinnati Timothy G. Ford, University of Louisiana– Monroe

Misty M. Ginicola, Southern Connecticut State University John Huss, Northern Kentucky University Sara C. Lawrence, Texas A&M University– Texarkana S. Kim MacGregor, Louisiana State University Patrice D. Petroff, Queens University of Charlotte Elizabeth Ann Rivet, Bay Path College