The effects of shared environment on adult intelligence
A critical review of adoption, twin, and MZA studies
Bibliographic Data
| ID | 17869245 |
|---|---|
| Authors | Jack S Kaplan, Jack Kaplan (Quinnipiac University, corresponding author) |
| Year | 2012 |
| Volume | 48 |
| Issue | 5 |
| Pages | 1292-1298 |
| Publication date | 2012-01-01 |
| Peer Reviewed | Yes |
| Open Access | No |
| Type | ARTICLE |
| Venue | Developmental Psychology (JOURNAL) |
| Journal identifiers | ISSN: 0012-1649 • E-ISSN: 1939-0599 |
| Publisher | American Psychological Association (APA) (PUBLISHER) |
| DOI | 10.1037/a0028133 |
| PMID | 22746221 |
| OpenAlex | W1989651802 |
| Language | EN |
| References cited | 8 |
There has been a vigorous debate for decades concerning the heritability of intelligence. In recent years, the debate has been focused on whether the components of IQ variability change with age and on separating environmental effects into shared and unshared components. Citing evidence from adoption studies, studies comparing identical and fraternal twins, and studies of identical twins raised apart, some prominent psychologists have concluded that the shared environment has a significant effect on the intelligence of children but little or no effect on the intelligence of adults. In this article, the evidence from such studies is reviewed. The article reaches the conclusion that while there is some evidence from adoption studies supporting the claim that shared environment has little or no effect on adult intelligence, that evidence is inconclusive and is inconsistent with evidence from twin studies and from studies of identical twins reared apart
Behavioural genetics · Cognition · Developmental psychology · Heritability · Intelligence quotient · Twin study · Cognitive Abilities and Testing · Psychology · Social Psychology
The limits of family influence
Sources of Human Psychological Differences
Genes, Evolution, and Personality
Genetic and Environmental Contributions to General Cognitive Ability Through the First 16 Years of Life
The Influence of "Family Background" on Intellectual Attainment
Twins, A Study of Heredity and Environment
Implications of the restricted range of family environments for estimates of heritability and nonshared environment in behavior-genetic adoption studies
Monozygotic Twins, Brought up Apart and Brought up Together
| Citation velocity | historical |
|---|---|
| Highly cited | No |