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Pub Date: |
2013-03-00 |
Pub Type(s): |
Information Analyses; Journal Articles; Reports - Evaluative |
Peer Reviewed: |
Yes |
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Descriptors:
Children; Adolescents; Age; Females; Behavior Disorders; Individual Development; Taxonomy; Psychological Studies; Psychopathology; Intervention
Abstract:
Children who exhibit persistently elevated levels of conduct problems (CP) from early childhood, so-called early-starters, are known to be at increased risk for continued CP throughout middle childhood, adolescence, and adulthood. Theoretical and empirical work has focused on this subgroup of children characterized by similar risk factors, an early age of onset, and a persistent developmental course of CP. However, females were historically neglected from this literature. Although research on female CP has increased, conclusions drawn from limited prior work continue to predominate. The primary aim of this review was to evaluate the updated literature to determine the percentage of females who show the early-starter CP pattern relative to two other trajectories often theorized to be more characteristic of females: early-starting desisting and adolescent-onset CP. The findings suggest that a subgroup of females exhibits an early-starting "and" persistent CP pattern, while a separate group of females demonstrates an onset of CP in adolescence. In addition, although it has been argued that females with childhood CP are not likely to show CP into adolescence and adulthood, evidence for early-starting desisting CP was inconsistent. The results are discussed with respect to implications for developmental taxonomy theory and future basic research in the area of CP development, as well as intervention efforts.
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Pub Date: |
2013-01-00 |
Pub Type(s): |
Journal Articles; Reports - Research |
Peer Reviewed: |
Yes |
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Descriptors:
Identification; Child Abuse; Risk; Foreign Countries; Gender Differences; Siblings; Child Health; Sexual Abuse; Urban Areas; Correlation; Incidence; Surveys; Prediction; Mothers; Age; Birth; Poverty; Mental Disorders; Prevention; Young Adults
Abstract:
Objectives: Exposure to child maltreatment is associated with physical, emotional, and social impairment, yet in Canada there is a paucity of community-based information about the extent of this problem and its determinants. We examined the prevalence of child physical and sexual abuse and the associations of child abuse with early contextual, family, and individual factors using a community-based sample in Ontario. Methods: The Ontario Child Health Study is a province-wide health survey of children aged 4 through 16 years. Conducted in 1983, a second wave was undertaken in 1987 and a third in 2000-2001. The third wave (N = 1,928) included questions about exposure to physical and sexual abuse in childhood. Results: Males reported significantly more child physical abuse (33.7%), but not severe physical abuse (21.5%), than females (28.2% and 18.3%, respectively). Females reported significantly more child sexual abuse (22.1%) than males (8.3%). Growing up in an urban area, young maternal age at the time of the first child's birth, and living in poverty, predicted child physical abuse (and the severe category), and sexual abuse. Childhood psychiatric disorder was associated with child physical abuse (and the severe category), while parental adversity was associated with child sexual abuse and severe physical abuse. Siblings of those who experienced either physical abuse or sexual abuse in childhood were at increased risk for the same abuse exposure; the risk was highest for physical abuse. Conclusions: These findings highlight important similarities and differences in risk factors for physical and sexual abuse in childhood. Such information is useful in considering approaches to prevention and early detection of child maltreatment. Clinicians who identify physical abuse or sexual abuse in children should be alert to the need to assess whether siblings have experienced similar exposures. This has important implications for assessment of other children in the home at the time of identification with the overall goal of reducing further occurrence of abuse. (Contains 4 tables and 1 figure.)
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Pub Date: |
2013-01-00 |
Pub Type(s): |
Journal Articles; Reports - Research |
Peer Reviewed: |
Yes |
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Descriptors:
Foreign Countries; Early Adolescents; Late Adolescents; Educational Attainment; Influences; Socioeconomic Status; Family Income; Welfare Services; Mothers; Age; Sex; Relocation; Attention Deficit Hyperactivity Disorder; Behavior Disorders; Family Relationship; Mental Health; Predictor Variables; Hierarchical Linear Modeling
Abstract:
This paper explores the relative importance of social factors and health measures in predicting educational achievement in early and late adolescence using population-based administrative data. The sample was made up of 41,943 children born in Manitoba, Canada between 1982 and 1989 and remaining in the province until age 18. Multilevel modeling nests each individual (level 1) within a family (level 2) residing within a neighborhood (level 3). Most important in predicting adolescent achievement were a broad socioeconomic status index (and a narrower measure of household income), being on social assistance, mother's age at first birth, gender, residential mobility, the presence of ADHD/Conduct disorders, and measures of family functioning (child taken into care or offered protection services and family structure history). Family size, birth order, and newborn characteristics (birthweight, APGAR, gestational age) were statistically significant but of little importance in explaining the outcomes. Both examining regression coefficients and systematically omitting variables showed social factors (often emphasized by epidemiologists) to have markedly greater effects than the combination of health measures (often stressed by economists) in predicting achievement. However, mental health in childhood is identified as among the important predictors. Record linkage across population datasets from health, education, and family services ministries allowed: tracking health and educational attainment at different times in a child's life, following a large number of cases across childhood, considerable sensitivity testing, controlling for unmeasured family and neighborhood effects, generating an extensive list of predictors, estimating effect sizes, and comparing Manitoba results with those of well-known American studies.
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Pub Date: |
2013-02-00 |
Pub Type(s): |
Journal Articles; Reports - Research |
Peer Reviewed: |
Yes |
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Descriptors:
Semantics; Verbs; Nouns; Comparative Analysis; Language Processing; Task Analysis; Syllables; Alphabets; Word Frequency; Age; Language Acquisition; Imagery; Associative Learning; Regression (Statistics); Reaction Time; Psycholinguistics
Abstract:
We analyzed the differential processing of nouns and verbs in a lexical decision task. Moderate and high-frequency nouns and verbs were compared. The characteristics of our material were specified at the formal level (number of letters and syllables, number of homographs, orthographic neighbors, frequency and age of acquisition), and at the semantic level (imagery, number and strength of associations, number of meanings, context dependency). A regression analysis indicated a classical frequency effect and a word-type effect, with latencies for verbs being slower than for nouns. The regression analysis did not permit the conclusion that semantic effects were involved (particularly imageability). Nevertheless, the semantic opposition between nouns as prototypical representations of objects, and verbs as prototypical representation of actions was not tested in this experiment and remains a good candidate explanation of the response time discrepancies between verbs and nouns.
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Pub Date: |
2013-00-00 |
Pub Type(s): |
Journal Articles; Reports - Research |
Peer Reviewed: |
Yes |
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Descriptors:
Deafness; Children; Animals; Assistive Technology; Auditory Stimuli; Stimulation; Age; Lateral Dominance
Abstract:
Unilateral deafness has a high incidence in children. In addition to children who are born without hearing in one ear, children with bilateral deafness are frequently equipped only with one cochlear implant, leaving the other ear deaf. The present study investigates the effects of such single-sided deafness during development in the congenitally deaf cat. The investigated animals were either born with unilateral deafness or received a cochlear implant in one ear and were subjected to chronic monaural stimulation. In chronically stimulated animals, implantation ages were at the following three critical developmental points: "early" during the peak of functional cortical synaptogenesis in deaf animals; "intermediate" at the age when synaptic activity in the deaf cats dropped to the level of hearing control cats and finally, "late" at the age when the evoked synaptic activity fell below the level of hearing control cats. After periods of unilateral hearing, local field potentials were recorded from the cortical surface using a microelectrode at approximately 100 recording positions. Stimulation was with cochlear implants at both ears. The measures evaluated were dependent only on the symmetry of aural input: paired differences of onset latencies and paired relations of peak amplitudes of local field potentials. A massive reorganization of aural preference in favour of the hearing ear was found in these measures if the onset of unilateral hearing was early (before or around the peak of functional synaptogenesis). The effect was reduced if onset of unilateral hearing was in the intermediate period, and it disappeared if the onset was late. In early onset of unilateral deafness, the used ear became functionally dominant with respect to local field potential onset latency and amplitude. This explains the inferior outcome of implantations at the second-implanted ear compared with first-implanted ear in children. However, despite a central disadvantage for the deaf ear, it still remained capable of activating the auditory cortex. Appropriate training may thus help to improve the performance at the second-implanted ear. In conclusion, periods of monaural stimulation should be kept as short as possible, and training focused on the deaf ear should be introduced after delayed second implantation in children.
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Author(s): |
Lopez, Oresta |
Source: |
Paedagogica Historica: International Journal of the History of Education, v49 n1 p56-69 2013 |
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Pub Date: |
2013-00-00 |
Pub Type(s): |
Journal Articles; Reports - Descriptive |
Peer Reviewed: |
Yes |
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Descriptors:
Pregnancy; Females; Foreign Countries; Mexicans; Social Change; Rural Schools; Nationalism; Marital Status; Feminism; Gender Bias; Political Influences; Violence; Teacher Salaries; Sex Fairness; Catholics; Victims; Age; Educational History
Abstract:
The reflections presented in this article include the process of incorporating women teachers into schools during the post-revolutionary period in Mexico. From one standpoint, women teachers lived in a state of ambiguity throughout this period because they were seen as symbols of national reconstruction following a war that left more than one million people dead. From another standpoint, they were victims of political and gender violence in a country that had not yet been pacified and was experiencing deep divisions between the armed Catholic groups that fought against the government. The process of the feminisation of Mexican teaching is approached through an analysis of the socio-professional conditions of rural teachers around the period of 1924 to 1945. There are a range of sources that were used for this research, including oral and documental. The collection of records of rural teachers from the Archivo Historico de la Secretaria de Educacion Publica are important in terms of a regional study that was done in the Valle del Mezquital as well as in a current national study. After reviewing over three thousand teacher files, I have been able to verify that many of these women were empowered and conscious of their significance in the national identity. They took advantage of the situation to obtain gender work benefits, which included equal wages to men, pregnancy leave regardless of marital status or age and uninterrupted contracts. This mobilisation by women teachers throughout the entire country was unprecedented in the professional history of Mexican women workers. These teachers fought many daily battles, both individually and collectively, to maintain their jobs, by writing letters to the head of the Rural School Department, sharing their stories and the injustices they experienced in their daily lives. Nonetheless, it is notable that for the first time, a collection of female voices can be found in the teacher files; these women did not want to keep quiet and they reflect a desire to participate in social change for themselves and their communities. (Contains 2 tables, 2 figures and 19 footnotes.)
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Pub Date: |
2013-01-00 |
Pub Type(s): |
Journal Articles; Reports - Research |
Peer Reviewed: |
Yes |
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Descriptors:
Foreign Countries; Visual Impairments; Children; Assistive Technology; Incidence; Demography; Age; Sex; Adventitious Impairments; Genetic Disorders; Congenital Impairments; Etiology
Abstract:
A retrospective study was carried out to evaluate the paediatric visual impaired population attending the Low Vision Clinic at Sheffield Teaching Hospitals NHS Foundation Trust, over a period of 14 years. Data were collected and analysed for children less than 17 years for prevalence, demographics, registration status, aetiologies, and types of low vision aids issued. The total number of children identified was 204. Of these, 19 percent of the children were registered blind, 45 percent were registered partially sighted, and 36 percent were not registered. The four diagnostic groups were genetic (29%), prenatal (36%), perinatal (23%), and childhood (12%). Describing local characteristics of paediatric visual impairment is a useful measure of current low vision service provision. This information can further inform educational, social, and health needs for the visually impaired children to ensure adequate service provision. (Contains 3 tables.)
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Pub Date: |
2013-02-00 |
Pub Type(s): |
Journal Articles; Reports - Research |
Peer Reviewed: |
Yes |
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Descriptors:
Reading Skills; Age; Dyslexia; Foreign Countries; Control Groups; Syntax; Metalinguistics; Reading Comprehension; Chinese; Junior High School Students; Short Term Memory; Regression (Statistics); Predictor Variables; Correlation; Morphology (Languages)
Abstract:
This study investigated the relative contribution of syntactic awareness to Chinese reading among Chinese-speaking adolescent readers with and without dyslexia. A total of 78 junior high school students in Hong Kong, 26 dyslexic adolescent readers, 26 average adolescent readers of the same age (chronological age control group) and 26 younger readers matched with the same reading level (reading-level group) participated and were administered measures of IQ, syntactic awareness, morphological awareness, vocabulary knowledge, working memory, word reading, and reading comprehension. Results showed that dyslexic readers scored significantly lower than chronological age but similarly to reading level control groups in most measures, especially in the areas of syntactic skills. Analyses of individual data also revealed that over half of the dyslexic readers exhibited certain aspects of deficits in syntactic skills. In regression analyses, syntactic skills were the strongest predictors of ability in word reading and reading comprehension measures. This study highlights the uniquely important correlates of syntactic skills in Chinese reading acquisition and impairment. (Contains 5 tables.)
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