Descriptor
Author
| Plomin, Robert | 2 |
| Asbury, Kathryn | 1 |
| Bishop, Dorothy | 1 |
| Dale, Philip | 1 |
| Dunn, Judith F. | 1 |
| Eley, Thalia C. | 1 |
| Pike, Alison | 1 |
| Price, Thomas S. | 1 |
Publication Type
| Journal Articles | 2 |
| Reports - Research | 1 |
Education Level
Audience
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Peer reviewedEley, Thalia C.; Dale, Philip; Bishop, Dorothy; Price, Thomas S.; Plomin, Robert – Journal of Educational Psychology, 2001
Etiology of verbal and performance delays were investigated in a large population sample of twins at 2 and 3 years (N=2,449 pair). Longitudinal genetic analyses indicated substantial heritability of verbal delay from 2 to 3 years, especially in combination with performance delay. Results suggest a strong genetic contribution to verbal delay…
Descriptors: Biological Influences, Cognitive Ability, Cognitive Development, Developmental Delays
Peer reviewedAsbury, Kathryn; Dunn, Judith F.; Pike, Alison; Plomin, Robert – Child Development, 2003
Examined nonshared environmental (NSE) influences on twin preschoolers' behavior independent of genetics. Found that within-pair parenting differences correlated with monozygotic differences in behavior. For the extreme 10 percent of the parenting-discordant and behavior-discordant distributions, average NSE effect size was 11 percent, suggesting…
Descriptors: Anxiety, At Risk Persons, Behavior Problems, Depression (Psychology)
