The Bioecological Model of Human Development
URIE BRONFENBRENNER and PAMELA A. MORRIS
OVERVIEW 795 DEFINING PROPERTIES OF THE BIOECOLOGICAL MODEL 796 Proposition I 797 Proposition II 798 FROM THEORY TO RESEARCH DESIGN: OPERATIONALIZING THE BIOECOLOGICAL MODEL 799 Developmental Science in the Discovery Mode 801 Different Paths to Different Outcomes: Dysfunction versus Competence 803 The Role of Experiments in the Bioecological Model 808 HOW DO PERSON CHARACTERISTICS INFLUENCE LATER DEVELOPMENT? 810 Force Characteristics as Shapers of Development 810 Resource Characteristics of the Person as Shapers of Development 812 Demand Characteristics of the Person as Developmental Inf luences 812 THE ROLE OF FOCUS OF ATTENTION IN PROXIMAL PROCESSES 813
PROXIMAL PROCESSES IN SOLO ACTIVITIES WITH OBJECTS AND SYMBOLS 814 THE MICROSYSTEM MAGNIFIED: ACTIVITIES, RELATIONSHIPS, AND ROLES 814 Effects of the Physical Environment on Psychological Development 814 The Mother-Infant Dyad as a Context of Development 815 BEYOND THE MICROSYSTEM 817 The Expanding Ecological Universe 818 Nature-Nurture Reconceptualized: A Bioecological Interpretation 819 TIME IN THE BIOECOLOGICAL MODEL: MICRO-, MESO-, AND MACROCHRONOLOGICAL SYSTEMS 820 FROM RESEARCH TO REALITY 822 THE BIOECOLOGICAL MODEL: A DEVELOPMENTAL ASSESSMENT 824 REFERENCES 825
The bioecological model, together with its corresponding research designs, is an evolving theoretical system for the scientific study of human development over time (Bronfenbrenner, 2005). In the bioecological model, development is defined as the phenomenon of continuity and change in the biopsychological characteristics of human beings, both as individuals and as groups. The phenomenon extends over the life course, across succesWe are especially grateful for the thoughtful criticisms of earlier drafts of the manuscript generously provided by the following colleagues: Jay Belsky, Rick Canfield, Nancy Darling, Glen H. Elder Jr., Steven F.
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