develop How Children
Robert Siegler Judy DeLoache Nancy Eisenberg Jenny Saffran
F o u r t h E d i t i o n
This is an exciting time in the field of child development. The past decade has brought new theories, new ways of thinking, new areas of research, and innumerable new findings to the field. We originally wrote How Children Develop to describe this ever improving body of knowledge of children and their development and to convey our excitement about the progress that is being made in understanding the developmental process. We are pleased to continue this endeavor with the publication of the Fourth Edition of How Children Develop. —From the Preface
As new research expands the field’s understanding of child and adolescent development, the authors of How Chil- dren Develop continue their commitment to bringing the story of today’s developmental science to the classroom in a clear and memorable way. Joined in this Fourth Edition by Jenny Saffran of the University of Wisconsin–Madison, they maintain their signature emphasis on the “Seven Classic Themes” of development, which facilitates students’ understanding by highlighting the fundamental questions posed by investigators past and present. The new and ex- panded coverage in the Fourth Edition spans a wide range of topics—from broad areas like the epigenetic aspects of development, the links between brain function and behavior, and the pervasive influence of culture to specific subjects such as the mechanisms of infants’ learning, the effects of math anxiety, and the rapidly growing influence of social media in children’s and adolescents’ lives. This edition also features the highly anticipated debut of Launch- Pad, an online learning system that features Worth Publishers’ celebrated video collection; the full e-Book of How Children Develop; and the LearningCurve quizzing system, which offers students instant feedback on their learning.
Learn more about and request access at www.worthpublishers.com/launchpad.
Order How Children Develop, Fourth Edition, with LaunchPad at no additional cost by using ISBN 10: 1-4641-8284-1 / ISBN-13: 978-1-4641-8284-6.
Coverage of contemporary developmental science is very important to me. I prefer a text that describes the relevant research and is updated regularly. I find How Children Develop to be very good in this area, as all of the authors are primarily researchers.
—Jeffery Gagne, University of Texas at Arlington
I highly recommend this textbook. The main strengths are up-to-date research with clear descriptions of study methods and findings as well as excellent real-world examples that get students interested in a topic so that they are excited enough to read about the research and evidence that support real-world developmental phenomenon. I do not think the text has a major weakness.
—Katherine O’Doherty, Bowdoin College
Since its inception, I think that How Children Develop is the best child development textbook available. I would not hesitate to use it again in my classes.
—Richard Lanthier, George Washington University
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Cover art: Football, Bentota, Sri Lanka, 1998 (oil on canvas) ©Andrew Macara / Private Collection / The Bridgeman Art Library
develop H
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W O R T H
F o u r t h E d i t i o n
Siegler DeLoache Eisenberg
Saffran
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develop How Children
F o u r t h E d i t i o n
Robert Siegler Carnegie Mellon University
Judy DeLoache University of Virginia
Nancy Eisenberg Arizona State University
Jenny Saffran University of Wisconsin–Madison
And Campbell Leaper, University of California–Santa Cruz, reviser of Chapter 15: Gender Development
This is dedicated to the ones we love
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about the authors: Robert Siegler is the Teresa Heinz Professor of Cognitive Psychology at Carnegie Mellon University. He is author of the cognitive development textbook Children’s Thinking and has written or edited several additional books on child development. His books have been translated into Japanese, Chinese, Korean, Spanish, French, Greek, Hebrew, and Portuguese. In the past few years, he has presented keynote addresses at the conventions of the Cognitive Development Society, the International Society for the Study of Behavioral Development, the Japanese Psychological Association, the Eastern Psychological Association, the American Psychological Society, and the Conference on Human Development. He also has served as Associate Editor of the journal Developmental Psychology, co-edited the cognitive development volume of the 2006 Handbook of Child Psychology, and served on the National Mathematics Advisory Panel from 2006 to 2008. Dr. Siegler received the American Psychological Association’s Distinguished Scientific Contribution Award in 2005, was elected to the National Academy of Education in 2010, and was named Director of the Siegler Center for Innovative Learning at Beijing Normal University in 2012.
Judy DeLoache is the William R. Kenan Jr. Professor of Psychology at the University of Virginia. She has published extensively on aspects of cognitive development in infants and young children. Dr. DeLoache has served as President of the Developmental Division of the American Psychological Association, as President of the Cognitive Development Society, and as a member of the executive board of the International Society for the Study of Infancy. She has presented major invited addresses at professional meetings, including the Association for Psychological Science and the Society for Research in Child Development. Dr. DeLoache is the holder of a Scientific MERIT Award from the National Institutes of Health, and her research is also funded by the National Science Foundation. She has been a visiting fellow at the Center for Advanced Study in the Behavioral Sciences in Palo Alto, California, and at the Rockefeller Foundation Study Center in Bellagio, Italy. She is a Fellow of the National Academy of Arts and Sciences. In 2013, she received the Distinguished Research Contributions Award from the Society for Research in Child Development and the William James Award for Distinguished Contributions to Research from the Association for Psychological Science.
Nancy Eisenberg is Regents’ Professor of Psychology at Arizona State University. Her research interests include social, emotional, and moral development, as well as so- cialization influences, especially in the areas of self-regulation and adjustment. She has published numerous empirical studies, as well as books and chapters on these topics. She has also been editor of Psychological Bulletin and the Handbook of Child Psychology and was the founding editor of the Society for Research in Child Development journal Child Development Perspectives. Dr. Eisenberg has been a recipient of Research Scientist Development Awards and a Research Scientist Award from the National Institutes of Health (NICHD and NIMH). She has served as President of the Western Psychological Association and of Division 7 of the American Psychological Association and is president- elect of the Association for Psychological Science. She is the 2007 recipient of the Ernest R. Hilgard Award for a Career Contribution to General Psychology, Division 1, American Psychological Association; the 2008 recipient of the International Society for the Study of Behavioral Development Distinguished Scientific Contribution Award; the 2009 re- cipient of the G. Stanley Hall Award for Distinguished Contribution to Developmental Psychology, Division 7, American Psychological Association; and the 2011 William James
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Fellow Award for Career Contributions in the Basic Science of Psychology from the Association for Psychological Science.
Jenny R. Saffran is the College of Letters & Science Distinguished Professor of Psychology at the University of Wisconsin–Madison, and an investigator at the Waisman Center. Her research is focused on learning in infancy and early childhood, with a particular focus on language. Dr. Saffran currently holds a MERIT award from the Eunice Kennedy Shriver National Institute of Child Health and Human Development. She has been the recipient of numerous awards for her scientific research, including the Boyd McCandless Award from the American Psychological Association for early career contributions to developmental psychology, and the Presidential Early Career Award for Scientists and Engineers from the National Science Foundation.
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Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx
1 An Introduction to Child Development . . . . . . . . . . . . . . . . . . 1
2 Prenatal Development and the Newborn Period . . . . . . . . . . . 39
3 Biology and Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . 85
4 Theories of Cognitive Development . . . . . . . . . . . . . . . . . 129
5 Seeing, Thinking, and Doing in Infancy . . . . . . . . . . . . . . . . 171
6 Development of Language and Symbol Use . . . . . . . . . . . . . 215
7 Conceptual Development . . . . . . . . . . . . . . . . . . . . . . . 259
8 Intelligence and Academic Achievement . . . . . . . . . . . . . . . 297
9 Theories of Social Development . . . . . . . . . . . . . . . . . . . 339
10 Emotional Development . . . . . . . . . . . . . . . . . . . . . . . . 383
11 Attachment to Others and Development of Self . . . . . . . . . . 425
12 The Family . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 467
13 Peer Relationships . . . . . . . . . . . . . . . . . . . . . . . . . . . . 509
14 Moral Development . . . . . . . . . . . . . . . . . . . . . . . . . . . 553
15 Gender Development . . . . . . . . . . . . . . . . . . . . . . . . . . 593
16 Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 637
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-1
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R-1
Name Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NI-1
Subject Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SI-1
brief contents:
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Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx
Chapter 1 An Introduction to Child Development . . . . . . 1
Reasons to Learn About Child Development . . . . . . . . . . . . . . . . 3 Raising Children 3 Choosing Social Policies 4 Understanding Human Nature 6 Review 7
Historical Foundations of the Study of Child Development . . . . . . . . 7 Early Philosophers’ Views of Children’s Development 8 Social Reform Movements 9 Darwin’s Theory of Evolution 9 The Beginnings of Research-Based Theories of Child Development 10 Review 10
Enduring Themes in Child Development . . . . . . . . . . . . . . . . . . . 10 1 . Nature and Nurture: How Do Nature and Nurture Together Shape
Development? 10 2 . The Active Child: How Do Children Shape Their Own
Development? 12 3 . Continuity/Discontinuity: In What Ways Is Development Continuous,
and in What Ways Is It Discontinuous? 13 4 . Mechanisms of Development: How Does Change Occur? 16 5 . The Sociocultural Context: How Does the Sociocultural Context
Influence Development? 17 6 . Individual Differences: How Do Children Become So Different
from One Another? 20 7 . Research and Children’s Welfare: How Can Research Promote
Children’s Well-Being? 21 Review 22
Methods for Studying Child Development . . . . . . . . . . . . . . . . . 22 The Scientific Method 23 Contexts for Gathering Data About Children 25 Correlation and Causation 28 Designs for Examining Development 32 Ethical Issues in Child-Development Research 35 Review 36
contents:
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Chapter 2 Prenatal Development and the Newborn Period . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Prenatal Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Box 2.1: A Closer look Beng Beginnings 41
Conception 42 Box 2.2: Individual differences The First—and Last—Sex Differences 44
Developmental Processes 45 Box 2.3: A Closer look Phylogenetic Continuity 46
Early Development 47 An Illustrated Summary of Prenatal Development 48 Fetal Behavior 51 Fetal Experience 52 Fetal Learning 54 Hazards to Prenatal Development 56
Box 2.4: Applications Face Up to Wake Up 61
Review 66
The Birth Experience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Diversity of Childbirth Practices 68 Review 69
The Newborn Infant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 State of Arousal 70 Negative Outcomes at Birth 74
Box 2.5: Applications Parenting a Low-Birth-Weight Baby 78
Review 81
Chapter 3 Biology and Behavior . . . . . . . . . . . . . . . . . 85
Nature and Nurture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Genetic and Environmental Forces 88
Box 3.1: Applications Genetic Transmission of Disorders 94
Behavior Genetics 99 Box 3.2: Individual differences Identical Twins Reared Apart 101
Review 105
Brain Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 Structures of the Brain 106 Developmental Processes 109
Box 3.3: A Closer look Mapping the Mind 110
The Importance of Experience 114 Brain Damage and Recovery 117 Review 118
The Body: Physical Growth and Development . . . . . . . . . . . . . . . 119 Growth and Maturation 119
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Nutritional Behavior 121 Review 126
Chapter 4 Theories of Cognitive Development . . . . . . . 129
Piaget’s Theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132 View of Children’s Nature 132 Central Developmental Issues 133 The Sensorimotor Stage (Birth to Age 2 Years) 135 The Preoperational Stage (Ages 2 to 7) 138 The Concrete Operational Stage (Ages 7 to 12) 141 The Formal Operational Stage (Age 12 and Beyond) 141 Piaget’s Legacy 142
Box 4.1: Applications Educational Applications of Piaget’s Theory 143
Review 144
Information-Processing Theories . . . . . . . . . . . . . . . . . . . . . . 145 View of Children’s Nature 146 Central Developmental Issues 147
Box 4.2: Applications Educational Applications of Information-Processing Theories 154
Review 155
Sociocultural Theories . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 View of Children’s Nature 156 Central Developmental Issues 158 Review 160
Box 4.3: Applications Educational Applications of Sociocultural Theories 161
Dynamic-Systems Theories . . . . . . . . . . . . . . . . . . . . . . . . . 161 View of Children’s Nature 163 Central Development Issues 165
Box 4.4: Applications Educational Applications of Dynamic-Systems Theories 166
Review 167
Chapter 5 Seeing, Thinking, and Doing in Infancy . . . . . 171
Perception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173 Vision 173
Box 5.1: A Closer look Infants’ Face Perception 176
Box 5.2: A Closer look Picture Perception 183
Auditory Perception 182 Taste and Smell 186 Touch 186 Intermodal Perception 186 Review 188
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Motor Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188 Reflexes 189 Motor Milestones 190 Current Views of Motor Development 191
Box 5.3: A Closer look “The Case of the Disappearing Reflex” 192
The Expanding World of the Infant 192 Box 5.4: Applications A Recent Secular Change in Motor Development 195
Box 5.5: A Closer look “Gangway—I’m Coming Down” 196
Review 198
Learning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 Habituation 199 Perceptual Learning 199 Statistical Learning 200 Classical Conditioning 201 Instrumental Conditioning 201 Observational Learning/Imitation 202 Rational Learning 204 Review 205
Cognition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205 Object Knowledge 206 Physical Knowledge 207 Social Knowledge 208 Looking Ahead 211 Review 211
Chapter 6 Development of Language and Symbol Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Language Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216 The Components of Language 217 What Is Required for Language? 218
Box 6.1: Applications Two Languages Are Better Than One 222
The Process of Language Acquisition 224 Box 6.2: Individual differences The Role of Family and School Context in Early Language Development 235
Box 6.3: Applications: iBabies: Technology and Language Learning 240
Theoretical Issues in Language Development 246 Box 6.4: A Closer look: “I Just Can’t Talk Without My Hands” What Gestures Tell Us About Language 248
Box 6.5: Individual differences Developmental Language Disorders 251
Review 252
Nonlinguistic Symbols and Development . . . . . . . . . . . . . . . . . 252 Using Symbols as Information 253 Drawing 254 Review 256
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Chapter 7 Conceptual Development . . . . . . . . . . . . . 259
Understanding Who or What . . . . . . . . . . . . . . . . . . . . . . . . 261 Dividing Objects into Categories 261 Knowledge of Other People and Oneself 266
Box 7.1: Individual differences Children with Autism Spectrum Disorders (ASD) 270
Box 7.2: Individual differences Imaginary Companions 273
Knowledge of Living Things 273 Review 278
Understanding Why, Where, When, and How Many . . . . . . . . . . . 278 Causality 279
Box 7.3: A Closer look Magical Thinking and Fantasy 282
Space 283 Time 286 Number 288 Relations Among Understanding of Space, Time, and Number 292 Review 293
Chapter 8 Intelligence and Academic Achievement . . . 297
What Is Intelligence? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299 Intelligence as a Single Trait 299 Intelligence as a Few Basic Abilities 299 Intelligence as Numerous Processes 300 A Proposed Resolution 300 Review 301
Measuring Intelligence . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301 The Contents of Intelligence Tests 302 The Intelligence Quotient (IQ) 304 Continuity of IQ Scores 305
Box 8.1: Individual differences Gifted Children 306
Review 306
IQ Scores as Predictors of Important Outcomes . . . . . . . . . . . . . 307 Review 308
Genes, Environment, and the Development of Intelligence . . . . . . . 308 Qualities of the Child 309 Influence of the Immediate Environment 310 Influence of Society 313
Box 8.2: Applications: A Highly Successful Early Intervention: The Carolina Abecedarian Project 318
Review 320
Alternative Perspectives on Intelligence . . . . . . . . . . . . . . . . . . 320 Review 322
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Acquisition of Academic Skills: Reading, Writing, and Mathematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
Reading 322 Box 8.3: Individual differences Dyslexia 326
Writing 328 Mathematics 330 Mathematics Anxiety 334
Box 8.4: Applications Mathematics Disabilities 335
Review 335
Chapter 9 Theories of Social Development . . . . . . . . . 339
Psychoanalytic Theories . . . . . . . . . . . . . . . . . . . . . . . . . . . 341 View of Children’s Nature 342 Central Developmental Issues 342 Freud’s Theory of Psychosexual Development 342 Erikson’s Theory of Psychosocial Development 345 Current Perspectives 347 Review 348
Learning Theories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348 View of Children’s Nature 349 Central Developmental Issues 349 Watson’s Behaviorism 349 Skinner’s Operant Conditioning 350 Social Learning Theory 352
Box 9.1: A Closer look Bandura and Bobo 352
Current Perspectives 355 Review 356
Theories of Social Cognition . . . . . . . . . . . . . . . . . . . . . . . . . 356 View of Children’s Nature 356 Central Developmental Issues 356 Selman’s Stage Theory of Role Taking 357 Dodge’s Information-Processing Theory of Social Problem Solving 357 Dweck’s Theory of Self-Attributions and Achievement Motivation 359 Current Perspectives 361 Review 361
Ecological Theories of Development . . . . . . . . . . . . . . . . . . . . 362 View of Children’s Nature 362 Central Developmental Issues 362 Ethological and Evolutionary Theories 362 The Bioecological Model 366
Box 9.2: Individual differences Attention-Deficit Hyperactivity Disorder 370
Box 9.3: Applications Preventing Child Abuse 373
Current Perspectives 378 Review 379
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Chapter 10 Emotional Development . . . . . . . . . . . . . 383
The Development of Emotions in Childhood . . . . . . . . . . . . . . . 385 Theories on the Nature and Emergence of Emotion 386 The Emergence of Emotion in the Early Years and Childhood 387
Box 10.1: Individual differences Gender Differences in Adolescent Depression 396
Review 398
Regulation of Emotion . . . . . . . . . . . . . . . . . . . . . . . . . . . . 398 The Development of Emotional Regulation 399 The Relation of Emotional Self-Regulation to Social Competence and Adjustment 401 Review 402
Individual Differences in Emotion and Its Regulation . . . . . . . . . . . 402 Temperament 403
Box 10.2: A Closer look Measurement of Temperament 406
Review 410
Children’s Emotional Development in the Family . . . . . . . . . . . . . 410 Quality of the Child’s Relationships with Parents 410 Parental Socialization of Children’s Emotional Responding 411 Review 414
Culture and Children’s Emotional Development . . . . . . . . . . . . . . 414 Review 416
Children’s Understanding of Emotion . . . . . . . . . . . . . . . . . . . . 416 Identifying the Emotions of Others 416 Understanding the Causes and Dynamics of Emotion 418 Children’s Understanding of Real and False Emotions 419 Review 421
Chapter 11 Attachment to Others and Development of Self . . . . . . . . . . . . . . . . . . . . . . . . . . 425
The Caregiver–Child Attachment Relationship . . . . . . . . . . . . . . 427 Attachment Theory 428 Measurement of Attachment Security in Infancy 430
Box 11.1: Individual differences Parental Attachment Status 432
Cultural Variations in Attachment 434 Factors Associated with the Security of Children’s Attachment 435
Box 11.2: Applications Interventions and Attachment 436
Does Security of Attachment Have Long-Term Effects? 437 Review 439
Conceptions of the Self . . . . . . . . . . . . . . . . . . . . . . . . . . . 439 The Development of Conceptions of Self 440
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Identity in Adolescence 446 Review 449
Ethnic Identity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 449 Ethnic Identity in Childhood 450 Ethnic Identity in Adolescence 451 Review 453
Sexual Identity or Orientation . . . . . . . . . . . . . . . . . . . . . . . . 453 The Origins of Youths’ Sexual Identity 453 Sexual Identity in Sexual-Minority Youth 454 Review 458
Self-Esteem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 458 Sources of Self-Esteem 459 Self-Esteem in Minority Children 462 Culture and Self-Esteem 463 Review 464
Chapter 12 The Family . . . . . . . . . . . . . . . . . . . . . . . 467
Family Dynamics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 470 Box 12.1: A Closer look Parent–Child Relationships in Adolescence 471
Review 472
The Role of Parental Socialization . . . . . . . . . . . . . . . . . . . . . . 472 Parenting Styles and Practices 472 The Child as an Influence on Parenting 477 Socioeconomic Influences on Parenting 479
Box 12.2: A Closer look Homelessness 481
Review 482
Mothers, Fathers, and Siblings . . . . . . . . . . . . . . . . . . . . . . . . 482 Differences in Mothers’ and Fathers’ Interactions with Their Children 482 Sibling Relationships 483 Review 485
Changes in Families in the United States . . . . . . . . . . . . . . . . . . 485 Box 12.3: Individual differences Adolescents as Parents 486
Older Parents 488 Divorce 489 Stepparenting 494 Lesbian and Gay Parents 496 Review 497
Maternal Employment and Child Care . . . . . . . . . . . . . . . . . . . 498 The Effects of Maternal Employment 498 The Effects of Child Care 500 Review 506
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Chapter 13 Peer Relationships . . . . . . . . . . . . . . . . . . 509
What Is Special About Peer Relationships? . . . . . . . . . . . . . . . . 512
Friendships . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 513 Early Peer Interactions and Friendships 513 Developmental Changes in Friendship 515 The Functions of Friendships 517 Effects of Friendships on Psychological Functioning and Behavior over Time 520
Box 13.1: Individual differences Culture and Children’s Peer Experience 522
Children’s Choice of Friends 523 Review 525
Peers in Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 525 The Nature of Young Children’s Groups 525 Cliques and Social Networks in Middle Childhood and Early Adolescence 526 Cliques and Social Networks in Adolescence 526 Negative Influences of Cliques and Social Networks 528
Box 13.2: A Closer look Cyberspace and Children’s Peer Experience 529
Romantic Relationships with Peers 531 Review 532
Status in the Peer Group . . . . . . . . . . . . . . . . . . . . . . . . . . . 532 Measurement of Peer Status 533 Characteristics Associated with Sociometric Status 533
Box 13.3: Applications Fostering Children’s Peer Acceptance 538
Stability of Sociometric Status 539 Cross-Cultural Similarities and Differences in Factors Related to Peer Status 539 Peer Status as a Predictor of Risk 540 Review 543
The Role of Parents in Children’s Peer Relationships . . . . . . . . . . . 544 Relations Between Attachment and Competence with Peers 544 Quality of Ongoing Parent–Child Interactions and Peer Relationships 545 Parental Beliefs 546 Gatekeeping and Coaching 546 Family Stress and Children’s Social Competence 548 Review 548
Chapter 14 Moral Development . . . . . . . . . . . . . . . . 553
Moral Judgment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 555 Piaget’s Theory of Moral Judgment 555 Kohlberg’s Theory of Moral Judgment 558
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Prosocial Moral Judgment 562 Domains of Social Judgment 563 Review 566
The Early Development of Conscience . . . . . . . . . . . . . . . . . . . 566 Factors Affecting the Development of Conscience 567 Review 568
Prosocial Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 568 The Development of Prosocial Behavior 569 The Origins of Individual Differences in Prosocial Behavior 571
Box 14.1: A Closer look Cultural Contributions to Children’s Prosocial and Antisocial Tendencies 573
Box 14.2: Applications School-Based Interventions for Promoting Prosocial Behavior 576
Review 577
Antisocial Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 577 The Development of Aggression and Other Antisocial Behaviors 577 Consistency of Aggressive and Antisocial Behavior 579
Box 14.3: A Closer look Oppositional Defiant Disorder and Conduct Disorder 580
Characteristics of Aggressive-Antisocial Children and Adolescents 581 The Origins of Aggression 582 Biology and Socialization: Their Joint Influence on Children’s Antisocial Behavior 587
Box 14.4: Applications The Fast Track Intervention 588
Review 589
Chapter 15 Gender Development . . . . . . . . . . . . . . . 593
Theoretical Approaches to Gender Development . . . . . . . . . . . . 595 Biological Influences 596
Box 15.1: A Closer look: Gender Identity: More than Socialization? 598
Cognitive and Motivational Influences 599 Box 15.2: A Closer look Gender Typing at Home 604
Box 15.3: Applications Where Are SpongeSally SquarePants and Curious Jane? 605
Cultural Influences 606 Review 607
Milestones in Gender Development . . . . . . . . . . . . . . . . . . . . 607 Infancy and Toddlerhood 608 Preschool Years 608 Middle Childhood 610 Adolescence 612
Box 15.4: A Closer look Gender Flexibility and Asymmetry 613
Review 614
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Comparing Girls and Boys . . . . . . . . . . . . . . . . . . . . . . . . . . 614 Physical Growth: Prenatal Development Through Adolescence 617 Cognitive Abilities and Academic Achievement 619 Personality Traits 625 Interpersonal Goals and Communication 626
Box 15.5: A Closer look Gender and Children’s Communication Styles 627
Aggressive Behavior 628 Box 15.6: Applications Sexual Harassment and Dating Violence 631
Review 633
Chapter 16 Conclusions . . . . . . . . . . . . . . . . . . . . . . . 637
Theme 1: Nature and Nurture: All Interactions, All the Time . . . . . . . 638 Nature and Nurture Begin Interacting Before Birth 638 Infants’ Nature Elicits Nurture 639 Timing Matters 639 Nature Does Not Reveal Itself All at Once 640 Everything Influences Everything 641
Theme 2: Children Play Active Roles in Their Own Development . . . . 641 Self-Initiated Activity 642 Active Interpretation of Experience 643 Self-Regulation 643 Eliciting Reactions from Other People 644
Theme 3: Development Is Both Continuous and Discontinuous . . . . . 645 Continuity/Discontinuity of Individual Differences 645 Continuity/Discontinuity of Overall Development: The Question of Stages 646
Theme 4: Mechanisms of Developmental Change . . . . . . . . . . . . 648 Biological Change Mechanisms 648 Behavioral Change Mechanisms 649 Cognitive Change Mechanisms 651 Change Mechanisms Work Together 653
Theme 5: The Sociocultural Context Shapes Development . . . . . . . 653 Growing Up in Societies with Different Practices and Values 653 Growing Up in Different Times and Places 655 Growing Up in Different Circumstances Within a Society 655
Theme 6: Individual Differences . . . . . . . . . . . . . . . . . . . . . . . 656 Breadth of Individual Differences at a Given Time 657 Stability Over Time 658 Predicting Future Individual Differences on Other Dimensions 658 Determinants of Individual Differences 659
Theme 7: Child-Development Research Can Improve Children’s Lives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 660
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Implications for Parenting 660 Implications for Education 662 Implications for Helping Children at Risk 662 Improving Social Policy 664
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-1
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R-1
Name Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NI-1
Subject Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SI-1
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This is an exciting time in the field of child development. The past decade has brought new theories, new ways of thinking, new areas of research, and innumera- ble new findings to the field. We originally wrote How Children Develop to describe this ever-improving body of knowledge of children and their development and to convey our excitement about the progress that is being made in understanding the developmental process. We are pleased to continue this endeavor with the publica- tion of the fourth edition of How Children Develop.
As teachers of child development courses, we appreciate the challenge that in- structors face in trying to present these advances and discoveries—as well as the major older ideas and findings—in a one-semester course. Therefore, rather than aim at encyclopedic coverage, we have focused on identifying the most important developmental phenomena and describing them in sufficient depth to make them meaningful and memorable to students. In short, our goal has been to write a text- book that makes the child development course coherent and enjoyable for students and teachers alike.
Classic Themes The basic premise of the book is that all areas of child development are unified by a small set of enduring themes. These themes can be stated in the form of questions that child development research tries to answer:
1. How do nature and nurture together shape development?
2. How do children shape their own development?
3. In what ways is development continuous and in what ways is it discontinuous?
4. How does change occur?
5. How does the sociocultural context influence development?
6. How do children become so different from one another?
7. How can research promote children’s well-being?
These seven themes provide the core structure of the book. They are introduced and illustrated in Chapter 1, highlighted repeatedly, where relevant, in the subse- quent fourteen content chapters, and utilized in the final chapter as a framework for integrating findings relevant to each theme from all areas of development. The continuing coverage of these themes allows us to tell a story that has a beginning (the introduction of the themes), a middle (discussion of specific findings relevant to them), and an ending (the overview of what students have learned about the themes). We believe that this thematic emphasis and structure will not only help students to understand enduring questions about child development but will also leave them with a greater sense of satisfaction and completion at the end of the course.
preface:
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Contemporary Perspective The goal of providing a thoroughly contemporary perspective on how children develop has influenced the organization of our book as well as its contents. Whole new areas and perspectives have emerged that barely existed when most of today’s child development textbooks were originally written. The organization of How Children Develop is designed to present these new topics and approaches in the context of the field as it currently stands, rather than trying to shoehorn them into organizations that once fit the field but no longer do.
Consider the case of Piaget’s theory and current research relevant to it. Piaget’s theory often is presented in its own chapter, most of which describes the theory in full detail and the rest of which offers contemporary research that demonstrates problems with the theory. This approach often leaves students wondering why so much time was spent on Piaget’s theory if modern research shows it to be wrong in so many ways.
The fact is that the line of research that began over 40 years ago as an effort to challenge Piaget’s theory has emerged since then as a vital area in its own right— the area of conceptual development. Research in conceptual development provides extensive information on such fascinating topics as children’s understanding of human beings, plants and animals, and the physical universe. As with other re- search areas, most studies in this field are aimed primarily at uncovering evidence relevant to current claims, not those of Piaget.
We adapted to this changing intellectual landscape in two ways. First, our chap- ter “Theories of Cognitive Development” (Chapter 4) describes the fundamental aspects of Piaget’s theory in depth and honors his legacy by focusing on the aspects of his work that have proven to be the most enduring. Second, a first-of-its-kind chapter called “Conceptual Development” (Chapter 7) addresses the types of issues that inspired Piaget’s theory but concentrates on modern perspectives and findings regarding those issues. This approach allows us to tell students about the numerous intriguing proposals and observations that are being made in this field, without the artificiality of classifying the findings as “pro-Piagetian” or “anti-Piagetian.”
The opportunity to create a textbook based on current understanding also led us to assign prominent positions to such rapidly emerging areas as epigenetics, behavioral genetics, brain development, prenatal learning, infant cognition, acquisi- tion of academic skills, emotional development, prosocial behavior, and friendship patterns. All these areas have seen major breakthroughs in recent years, and their growing prominence has led to even greater emphasis on them in this edition.
Getting Right to the Point Our desire to offer a contemporary, streamlined approach led to other departures from the traditional organization. It is our experience that today’s students take child development courses for a variety of practical reasons and are eager to learn about children. Traditionally, however, they have had to wait two or three or even four chapters—on the history of the field, on major theories, on research methods, on genetics—before actually getting to the study of children. We wanted to build on their initial motivation from the start.
Rather than beginning the book, then, with an extensive examination of the his- tory of the field, we include in Chapter 1 a brief overview of the social and intel- lectual context in which the scientific study of children arose and provide historical
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background wherever it is pertinent in subsequent chapters. Rather than have an early “blockbuster” theories chapter that covers all the major cognitive and social theories at once (at a point far removed from the content chapters to which the theories apply), we present a chapter on cognitive developmental theories just before the chapters that focus on specific aspects of cognitive development, and we simi- larly present a chapter on social developmental theories just before the chapters that focus on specific aspects of social development. Rather than have a separate chapter on genetics, we include basic aspects of genetics as part of Chapter 3, “Biology and Behavior,” and then discuss the contributions of genetics to some of the differences among individuals throughout the book. When we originally chose this organization, we hoped that it would allow us, from the first weeks of the course, to kindle students’ enthusiasm for finding out how children develop. Judging by the overwhelmingly positive response we have received from students and instructors alike, it has.
Features The most important feature of this book is the exposition, which we have tried to make as clear, compelling, and interesting as possible. As in previous editions, we have given extra attention to making it accessible to a broad range of students.
To further enhance the appeal and accessibility of the text, we have re- tained three types of discussion boxes that explore topics of special interest. “Applications” boxes focus on how child development research can be used to promote children’s well-being. Among the applications that are summed up in these boxes are board-game procedures for improving preschoolers’ understand- ing of numbers; the Carolina Abecedarian Project; interventions to reduce child abuse; programs, such as PATHS, for helping rejected children gain acceptance from their peers; and Fast Track interventions, which help aggressive children learn how to manage their anger and antisocial behavior. “Individual Differences” boxes focus on populations that differ from the norm with regard to the specific topic under consideration, or on variations among children in the general popu- lation. Some of these boxes highlight developmental problems such as autism, ADHD, dyslexia, specific language impairment, and conduct disorder, while oth- ers focus on differences in the development of children that center on attachment status, gender, and cultural differences. “A Closer Look” boxes examine important and interesting research in greater depth than would otherwise be possible: the areas examined range from brain imaging techniques to discrepant gender iden- tity to the developmental impact of homelessness.
We have also retained a number of other features intended to improve students’ learning. These features include boldfacing key terms and supplying definitions both within the immediate text and in marginal glossaries; providing summaries at the end of each major section, as well as summaries for the overall chapter; and, at the end of each chapter, posing critical thinking questions intended to promote deeper consideration of essential topics.
New to the Fourth Edition We have expanded our coverage of a number of research areas that have become increasingly important in recent years for both the students of child development and the instructors who teach it. In the following paragraphs, we outline some of
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the highlights of the fourth edition. Thank you for taking the time to look through this new edition of How Children Develop. We hope that you find it to be useful and appealing.
New and Expanded Coverage In selecting what to cover from among the many new discoveries about child de- velopment, we have emphasized the studies that strike us as the most interesting and important. While retaining and thoroughly updating its essential coverage, the fourth edition of How Children Develop continues to explore a number of fascinat- ing areas in which there has been great progress in the past few years. Following is a very brief sampling of the many areas of new and expanded coverage: n Epigenetics n Gene–environment relations, including methylation n The role of specific gene variants in certain behaviors n Differential susceptibility to the environment n Brain development and functioning n Mechanisms of infants’ learning n Infants’ understanding of other people n Executive functioning n Cultural influences on development n Relations among understanding of time, space, and number n Mathematics anxiety n Applications of research to education n The growing role and impact of social media in children’s and adolescents’ lives n Interventions to foster children’s social adjustment
Supplements How Children Develop, Fourth Edition, features a wide array of multimedia tools designed for the individual needs of students and teachers. For more information about any of the items below, visit Worth Publishers’ online catalog at www. worth publishers.com.
LaunchPad with LearningCurve Quizzing A comprehensive Web resource for teaching and learning psychology
LaunchPad combines Worth Publishers’ awarding-winning media with an in- novative platform for easy navigation. For students, it is the ultimate online study guide with rich interactive tutorials, videos, e-Book, and the LearningCurve adaptive quizzing system. For instructors, LaunchPad is a full course space where class documents can be posted, quizzes are easily assigned and graded, and students’ progress can be assessed and recorded. Whether you are looking for the most effec- tive study tools or a robust platform for an online course, LaunchPad is a powerful way to enhance your class.
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LaunchPad for How Children Develop, Fourth Edition, can be previewed and purchased at http:// www .worthpublishers.com/launchpad/siegler4e. How Children Develop, Fourth Edition, and LaunchPad can be ordered together with ISBN 10: 1-4641-8284-1 / ISBN-13: 978-1-4641-8284-6.
LaunchPad for How Children Develop, Fourth Edition, includes the following resources: n The LearningCurve quizzing system was designed
based on the latest findings from learning and memory research. It combines adaptive question selection, immediate and valuable feedback, and a game-like interface to engage students in a learning experience that is unique to them. Each LearningCurve quiz is fully integrated with other resources in LaunchPad through the Personalized Study Plan, so students will be able to review with Worth’s extensive library of videos and activities. And state-of-the-art question analysis reports allow instructors to track the progress of individual students as well as their class as a whole.
n An interactive e-Book allows students to highlight, bookmark, and make their own notes, just as they would with a printed textbook. Digital enhancements include full-text search and in-text glossary definitions.
n Student Video Activities include more than 100 engaging video modules that instructors can easily assign for student assessment. Videos cover classic experiments, current news footage, and cutting-edge research, all of
which are sure to spark discussion and encourage critical thinking. n The Scientific American Newsfeed delivers weekly articles, podcasts, and news
briefs on the very latest developments in psychology from the first name in popular science journalism.
Additional Student Supplements CourseSmart e-Book The CourseSmart e-Book offers the complete text of How Children Develop, Fourth Edition, in an easy-to-use, flexible format. Students can choose to view the CourseSmart e-Book online or download it to a personal computer or a por- table media player, such as a smart phone or iPad. The CourseSmart e-Book for How Children Develop, Fourth Edition, can be previewed and purchased at www .coursesmart.com.
Scientific American Reader to Accompany How Children Develop The authors have compiled fifteen Scientif ic American articles relevant to key top- ics in the text. The selections range from classics such as Harry Harlow’s “Love in Infant Monkeys” and Eleanor Gibson and Richard Walk’s “The ‘Visual Cliff ’” to
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contemporary articles on such topics as the interaction of games and environment in the development of intelligence (Robert Plomin and John DeFries), the effects of child abuse on the developing brain (Martin Teicher), balancing work and family (Robert Pleck), and moral development (William Damon). These articles should enrich students’ learning and help them to appreciate the process by which devel- opmental scientists gain new understanding. This premium item can be packaged with the text at no additional cost.
Take advantage of our most popular supplements!
Worth Publishers is pleased to offer cost-saving packages of How Children Develop, Fourth Edition, with our most popular
supplements. Below is a list of some of the most popular combinations available for order through your local bookstore.
How Children Develop, 4th Ed. & LaunchPad Access Card ISBN 10: 1-4641-8284-1 / ISBN-13: 978-1-4641-8284-6
How Children Develop, 4th Ed. & iClicker ISBN 10: 1-4641-8283-3 / ISBN-13: 978-1-4641-8283-9
How Children Develop, 4th Ed. & Scientif ic American Reader ISBN 10: 1-4641-8282-5 / ISBN-13: 978-1-4641-8282-2
How Children Develop, 4th Ed. & Readings on the Development of Children ISBN 10: 1-4641-8281-7 / ISBN-13: 978-1-4641-8281-5
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