Preface
1. A Brief History and Overview of the Project
1. Why Carry Out (or Read about) an Adoption Study?
2. Previous Adoption Studies
3. The Texas Adoption Project—Beginnings
4. Some Characteristics of the Sample
5. Studies in the Texas Adoption Project—Chronological Sequence
6. Summary and Look Ahead
2. Intellectual Abilities in the Texas Adoption Project
1. About the Presentation of Results in this Book
2. Intelligence and Intelligence Tests
3. Evidence about Heredity and Environment from Comparisons of
Means
4. Evidence about Heredity and Environment from Family
Correlations
5. More Specialized Aspects of Intelligence
3. Personality in the Texas Adoption Project
1. Personality Measures Used in the TAP
2. The Rating Composites
3. The Cattell Scales
4. The CPI and the TTS in the Separate Mail Study
5. The MMPI
6. Personality Change
4. Achievement, Adjustment, Outcomes
1. Academic Achievement
2. Psychopathology and Problem Behavior
3. Occupation
4. Personal Relationships
5. Maturity and Happiness
6. Factors Related to Outcomes
5. Summary and Conclusions
1. The Story so Far
2. What We Learned in the TAP
3. Four Families
4. Some Limitations of Adoption Studies
5. Some Implications of the Texas Adoption Project
6. Final Comments
Appendices
A. Initial Letter to Families
B. Rating Scales
C. IQ Test Details
D. Details on Self-Ratings
E. Modeling of Selection
Glossary
References
Index
Joseph Horn
-[A]n important contribution to the field of psychology... I highly
recommend this book for a wide audience of educated readers. It
makes an important and timely contribution to our understanding of
genetic and environmental influences on difference aspects of human
behavior.- - Susan L. O'Donnell, Contemporary Psychology: APA
Review of Books -The Texas Adoption Project (TAP) was one of the
most thorough and long-running efforts ever undertaken to
investigaete the relative effects of environment and genes on
intelligence and personality. It was a 35-year study of 300
families that had adopted children from the Methodist Mission Home
of San Antonio, Texas. This slim, well-written book is the TAP's
final report. . . . Perhaps the greatest value of this study for
non-specialists. . . is the clear way in which it describes how the
research was carried out, and the many steps taken to ensure the
most accurate results. The authors explain a host of details,
whether about statistic methods or practical matters, that bring
their story to life. . . . [T]he TAP was conducted with such
obvious care, rigor, and dispassion that it should be convincing to
all but the most crazed ideologues.- --Thomas Jackson, American
Renaissance
"[A]n important contribution to the field of psychology... I highly
recommend this book for a wide audience of educated readers. It
makes an important and timely contribution to our understanding of
genetic and environmental influences on difference aspects of human
behavior." - Susan L. O'Donnell, Contemporary Psychology: APA
Review of Books "The Texas Adoption Project (TAP) was one of the
most thorough and long-running efforts ever undertaken to
investigaete the relative effects of environment and genes on
intelligence and personality. It was a 35-year study of 300
families that had adopted children from the Methodist Mission Home
of San Antonio, Texas. This slim, well-written book is the TAP's
final report. . . . Perhaps the greatest value of this study for
non-specialists. . . is the clear way in which it describes how the
research was carried out, and the many steps taken to ensure the
most accurate results. The authors explain a host of details,
whether about statistic methods or practical matters, that bring
their story to life. . . . [T]he TAP was conducted with such
obvious care, rigor, and dispassion that it should be convincing to
all but the most crazed ideologues." --Thomas Jackson, American
Renaissance
"[A]n important contribution to the field of psychology... I highly
recommend this book for a wide audience of educated readers. It
makes an important and timely contribution to our understanding of
genetic and environmental influences on difference aspects of human
behavior." - Susan L. O'Donnell, Contemporary Psychology: APA
Review of Books "The Texas Adoption Project (TAP) was one of the
most thorough and long-running efforts ever undertaken to
investigaete the relative effects of environment and genes on
intelligence and personality. It was a 35-year study of 300
families that had adopted children from the Methodist Mission Home
of San Antonio, Texas. This slim, well-written book is the TAP's
final report. . . . Perhaps the greatest value of this study for
non-specialists. . . is the clear way in which it describes how the
research was carried out, and the many steps taken to ensure the
most accurate results. The authors explain a host of details,
whether about statistic methods or practical matters, that bring
their story to life. . . . [T]he TAP was conducted with such
obvious care, rigor, and dispassion that it should be convincing to
all but the most crazed ideologues." --Thomas Jackson, American
Renaissance
"[A]n important contribution to the field of psychology... I highly
recommend this book for a wide audience of educated readers. It
makes an important and timely contribution to our understanding of
genetic and environmental influences on difference aspects of human
behavior."- Susan L. O'Donnell, Contemporary Psychology: APA Review
of Books
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