This report of a longitudinal study of the influence of family relationships and genetic factors on competence and psychopathology in adolescent development proposes that family relationships are crucial to the expression of genetic influences and may constitute a code for translating genetic influences into the ontogeny of behaviors.

Foreword Preface Reader's Guide 1. Introduction: Reconciling Social and Genetic Influences on Adolescent Development Part I: Logical Tools for Analyzing Adolescent Development 2. Relationships and Adolescent Development 3. Genetic Influences on Development 4. Genetic Analysis of Adolescent Development 5. Studying Adolescent Siblings and Their Families Part II: Genes and Relationships: Thesis, Antithesis, Synthesis 6. Thesis I: A Theory of Adolescents' Shared and Nonshared Family Relationships 7. Thesis II: Major Findings on Adolescents' Family Relationships 8. Antithesis I: Influences on Stability and Change in Adolescent Adjustment 9. Antithesis II: Influences on Stability and Change in Adolescents' Families 10. Antithesis III: Linking Family Relationships and Adolescent Development 11. Synthesis I: Genetic Influences on Change in Family Relationships and Adolescent Development 12. Synthesis II: The Relationship Code 13. Synthesis III: Genetically Informed Portrayals of Adolescents and Their Families 14. Epilogue: The Family Appendix A: Explanation of Methods for Data Presented in Chapters 8 through 13 Appendix B: Explanation of Results Appendix C: Additional Genetic Analyses Glossary References Index of Tables and Figures General Index

This book is of fundamental importance in biobehavioral sciences. The authors, all distinguished research scientists with years of experience with genetic and social studies, advance the nature–nurture debate… They present a uniquely new view of genetic influences, namely, the genetic tendencies for certain beneficial styles and personality are influenced significantly by patterns of relationships.