The Genetic and Environmental Origins of Learning Abilities and Disabilities in the Early School Years

ABSTRACT vii.

I. INTRODUCTION 1.

II. METHODS 14.

III. NATURE AND NURTURE 49.

IV. THE ABNORMAL IS NORMAL 60.

V. GENETIC STABILITY, ENVIRONMENTAL CHANGE 67.

VI. GENERALIST GENES, SPECIALIST ENVIRONMENTS 82.

VII. CONCLUSIONS AND IMPLICATIONS 105.

APPENDICES 124.

REFERENCES 137.

ACKNOWLEDGMENTS 144.

COMMENTARY.

BEYOND NATURE–NURTURE.

Richard A. Weinberg 145.

DYNAMIC DEVELOPMENT AND DYNAMIC EDUCATION.

Jennifer M. Thomson and Kurt W. Fischer 150.

CONTRIBUTORS 157.

STATEMENT OF EDITORIAL POLICY 159