Biomedical subjects

Kimberly J Saudino

Publications and source records attributed to Kimberly J Saudino.

6 recordsLinked to original sources

PubMed2005

The etiology of behavior problems in 7-year-old twins: substantial genetic influence and negligible shared environmental influence for parent ratings and ratings by same and different teachers.

Parent ratings of behavior problems in childhood show substantial genetic influence and modest shared environmental influence. However, few studies have compared these results to teacher ratings and no previous studies have compared same-teacher ratings to different-teacher ratings. 3,714 7-year-old twin pairs in the Twins Early Development Study were rated by parents and teachers on the Strengths and Difficulties Questionnaire. Substantial heritability and negligible shared environmental influence were found for data from all three raters for total behavior problems, hyperactivity, prosocial behavior, peer problems, conduct problems, and emotional symptoms. Sex-limitation models revealed similar results for males and females, although there was some evidence for greater heritability for boys, especially when twins were rated by the same teacher.

Attention Deficit Disorder with Hyperactivity↗

PubMed2005

Behavioral genetics and child temperament.

Most temperament theories presume a biological basis to those behavioral tendencies thought to be temperamental in origin. Behavioral genetic methods can be used to test this assumption. Twin and adoption studies suggest that individual differences in infant and child temperament are genetically influenced. However, behavioral genetics has much more to offer to the study of temperament than simple heritability estimates. The present paper describes some recent findings from behavioral genetics research in temperament that go well beyond the basic nature-nurture question. These findings include the importance of nonshared environmental influences on temperament, genetic continuity and environmental change during development, links between temperament and behavior problems, and harnessing the power of molecular genetics to identify specific genes responsible for genetic influence on early temperament.

Adolescent↗

PubMed2004

Night and day: are siblings as different in temperament as parents say they are?

Twin studies suggest that parent ratings of temperament exaggerate differences between twins. The present study examined whether such contrast effects also operate for nontwin siblings. The activity level (AL) and shyness of 95 nontwin sibling pairs (ages 3 to 8 years) were assessed via parent ratings and objective measures (actigraph and observer ratings). Siblings showed no resemblance in either parent-rated AL or shyness; however, sibling resemblance for actigraph AL and observer-rated shyness was substantial. Thus, parents do contrast their nontwin siblings when rating these 2 temperament dimensions. Moreover, the importance of sibling differences in temperament to the sibling relationship and differential maternal treatment varied across the different measures of AL and shyness, suggesting that parent perceptions may play a role in these associations.

Child↗

PubMed2004

Genetic and environmental influences on intimate partner aggression: a preliminary study.

Social learning theory posits that, because aggression against intimates runs in families, children learn how to behave aggressively through watching their parents and being reinforced for their own aggression. This theory considers only environmental influences on familial resemblance; however, familial resemblance could also be due to genetic factors. The current study uses a twin design (134 monozygotic, 41 dizygotic) to examine the extent to which genetic and environmental factors contribute to individual differences in intimate aggression. Model-fitting analyses consistently showed that shared genes explained the familial resemblance in psychological and physical intimate partner aggression; the remaining variance was explained by unique environments. Multivariate model-fitting analyses showed that most of the genetic influences responsible for the receipt of aggression were also responsible for its use, suggesting that there is a genetic predisposition to get involved in aggressive relationships. These results challenge the prevailing theory to explain familial resemblance in intimate aggression.

Adult↗

PubMed2003

Gender differences in psychological, physical, and sexual aggression among college students using the revised conflict tactics scales.

In response to criticisms of the Conflict Tactics Scales, Straus revised the original scale to include sexual aggression and injury. The purpose of the present study was to use this new scale to replicate and expand existing knowledge of psychological, physical, and sexual aggression in dating relationships. Four-hundred-eighty-one college students completed the Revised Conflict Tactics Scales. As expected, females reported perpetrating more psychological aggression than males; there were no gender differences in reported physical aggression; and psychological and physical aggression tended to co-occur. Contrary to previous research, there were no gender differences in injuries. As expected, males reported perpetrating more sexual coercion than females; however, females also reported perpetrating sexual aggression, and there were no gender differences in reported victimization. For males, sexual coercion perpetration (not victimization) was related to the perpetration and victimization of physical and psychological aggression. For females, both sexual coercion perpetration and victimization were related to the perpetration and victimization of psychological aggression and victimization from physical aggression, but not to physical aggression perpetration.

Adolescent↗

PubMed2002

Influence of parental stress and social support on the behavioral adjustment of children with transposition of the great arteries.

The joint role of parent stress and social support in the emotional adjustment of children was examined prospectively in a group of children with d-transposition of the great arteries (d-TGA). Questionnaires on parent perceptions of stress and social support were administered when children were 1 and 4 years of age (n = 143-153). Parent ratings of child behavior problems were collected at 4 years (n = 152). The findings indicate a favorable outcome for parents and children with congenital heart disease (CHD). Compared with normative samples, parents experienced less stress and more social support, and they rated children as showing fewer behavior problems. Parents with more stress at both ages reported more behavior problems. Families with less social support reported more stress at both 1 and 4 years. Social support, however, did not moderate the relationship between stress and child behavior problems. Early detection of distressed families may assist in alleviating stress and reducing behavior problems.

Child Behavior Disorders↗