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For children in middle childhood, the social world, particularly the behavior and attitudes of their school peers, has been shown to be an important factor in their educational and mental health outcomes. In the school environment, some children seem to influence the attitudes and behavior of their peers more than others. The behavior patterns of children, as reflected in temperamental traits, have been shown to drive peer perception in important ways and might play a role in identifying the individuals and social processes that operate in peer influence. It seems likely that temperamental traits will have different effects on school peers, dependent on characteristics of the school attended. Fourth and fifth grade children from four rural counties in the southeastern portion of the United States were studied. Temperamental characteristics were assessed based on teacher perception of six characteristics. Peer perceptions of the extent to which each child was perceived to influence others in five areas of school culture (e.g., academics, sports) was measured through a peer nomination procedure. Additional status-related perceptions and behaviors of participating children were also assessed by peer nominations. Teacher ratings of temperamental behaviors were submitted to latent profile analyses resulting in a seven-cluster model. Results indicated temperamental profiles were significantly and meaningfully associated with peer perceptions of influence as well as social status. Further, demographic differences between two groups of schools were found to moderate the effects that temperament profile had on peer influence.

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As more researchers utilize the Five-factor model (FFM) of personality with children and adolescents, the need for instruments designed specifically for use with children and adolescents increases. In the United States, the 108-item Inventory of Children's Individual Differences (ICID; Halverson et al., 2003), has provided researchers with an age and culture neutral instrument designed specifically to assess the FFM of personality in children and adolescents, ages 2 to 15, using parental, nonparental, or self-reports. This article presents a shorter, 50-item version of the ICID (the ICID-S) that maintains the levels of validity and reliability previously established for the full instrument.

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OBJECTIVE: This study investigated the association between maternal smoking during pregnancy and ratings of offspring's temperament, behavior, and academic performance at various developmental periods in childhood. METHODS: Multivariate analyses of a birth cohort examined the outcomes for children on measures of temperament, behavior, and academic performance in infancy (6 months), at age 5, and at age 12. RESULTS: When controlling for maternal psychiatric hospitalization, psychological distress during pregnancy, hospitalization for accidents, socioeconomic status, age, and symptoms of upper respiratory infection and nausea, a range of associations between maternal smoking and child outcomes were observed at different ages studied. CONCLUSION: Despite widespread warning regarding smoking cessation during pregnancy, the literature base on the longer-term effects beyond the neonatal and infant period is less available. This is one of the first studies to investigate the association between maternal smoking during pregnancy and child outcomes at several stages of development. The results provide evidence for the lasting effects of smoking during pregnancy on the development of the child.

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BACKGROUND: In this study, we sought to understand whether prenatal exposure to cigarette smoke would be associated with increased offspring hospitalization through age 22 years for various physical and mental health diagnoses. METHODS: We used multivariate logistic regression to investigate the relationship between gestational exposure to cigarette smoke and offspring hospitalization for physical and mental health conditions based on International Classification of Diseases (ICD; World Health Organization) diagnoses. RESULTS: When controlling for parental psychiatric status, maternal somatic health, socioeconomic status, parity, and maternal age, youth born to mothers who smoked six or more cigarettes per day were more likely to have experienced hospitalization for neuroses (OR, 1.97), diseases of the nervous system (i.e., neurological disorders) (OR, 1.47), respiratory infections (OR, 1.28), accidents (OR, 1.44), infections (OR, 1.54), undiagnosed symptoms (OR, 1.65), and total admissions (OR, 1.48). Female offspring prenatally exposed were more likely to have experienced hospitalization for obstetric complications (OR, 2.94). No association was found for the remaining categories analyzed: blood disorders, skin diseases, psychoses, metabolic/endocrine disease, circulatory disease, digestive disease, disease of the skeletal/muscular system, physical anomalies, neoplasms, and genital/urinary disease. CONCLUSIONS: This is the first study to investigate the impact of gestational exposure to cigarette smoke on global measures of somatic and physical health in offspring. This study adds to the literature by demonstrating that smoking during pregnancy increases offspring risk for additional health outcomes not previously recognized in the literature, and that the effect of smoking during pregnancy persists throughout the developmental period. The possibility that these findings are related to lifestyle markers or smoke exposure during childhood should also be considered.

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A sizable literature has demonstrated that the achievement of children in early elementary school is related to their season of birth: Those born in summer typically perform less well than those born in the fall. A small literature indicates that more children diagnosed with specific learning disabilities (SLD) are born in the summer. We have begun to explore the possibility that the same processes may account for both outcomes. In order to better understand these processes, the standardized achievement levels and rates of diagnosis of SLD for children born during each season were studied in one geographical area of the State of Georgia served by 28 school districts. Standardized achievement scores in reading, mathematics, and science were reliably lower for those born in the summer. Furthermore, there was a strong relationship between season of birth and the rate at which children received a diagnosis of SLD. Summer-born children were diagnosed with SLD at a higher rate than their peers. Four hypotheses for both the lower performance in the general school population and the greater rate of SLD diagnosis among these children are discussed.

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BACKGROUND: This study is one of the first to investigate the association between maternal report of fever during middle to late pregnancy and psychological, behavioral, and educational outcomes in offspring. The hypothesis guiding this research was that maternal fever during the second trimester of pregnancy has an adverse effect on the development of the central nervous system (CNS) of the fetus, resulting in abnormalities of psychological development and behavior that can be observed in childhood. METHODS: Multivariate analyses of a birth cohort compared outcomes for children whose mothers never reported fever during pregnancy and those who reported fever in the second and third trimesters. Children were compared on measures of temperament, behavior, and academic performance in infancy and at five and 12 years of age. RESULTS: Associations were obtained for second-trimester fever and distress to novelty (p < 0.05) in infancy. Significant associations were also obtained for inhibition (p < 0.01), negative emotionality (p < 0.05), and lack of task persistence (p < 0.01) at age five. Furthermore, school achievement (p < 0.05) and task orientation (p < 0.01) at age 12 were associated with maternal reports of second-trimester fever exposure. CONCLUSIONS: Much of the gestation/hyperthermia research has focused on the relationship between hyperthermia exposure and profoundly teratogenic outcomes. In this study we investigated subtler psychological/behavioral associations that may not be observable until later in development. Although the current study was hampered by technical limitations, the results support the need for more rigorously controlled research into a possible association between gestational fever and psychological/behavioral outcomes.

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