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This study examined the efficacy of a school-based exercise and nutrition program with a parent component. Third-grade children (N = 238) from six elementary schools participated in the study, with three schools randomly assigned to a program group and the other three schools to a control group. The program group received a health-related fitness school-based program and a home program that required parents and children to complete activities and earn points for nutrition and exercise activities. The control group received their traditional physical education and nutrition education program. Univariate analysis of variance on pre- and posttest scores were completed on the following variables: height, weight, body mass index, skinfold, blood cholesterol, mile run, exercise and nutrition knowledge, calories, protein, carbohydrates, total fat, saturated fat, dietary cholesterol, fiber, sodium, percentage of calories from carbohydrates, and percentage of calories from fat. At pretest, the treatment and control groups did not significantly differ on the measures using schools as the unit of analysis. Girls scored significantly higher than boys on skinfold and pretest knowledge. At posttest, the treatment group scored significantly higher than the control group on exercise and nutrition knowledge and significantly lower than the control group on total fat intake, using schools as the unit of analysis. There was no improvement in physiological measures, including blood cholesterol. The study demonstrated that schools can adjust curriculum to meet some health needs of students and achieve modest changes in exercise and nutrition knowledge and diet. The family component of the program provided a practical approach to improving physical activity and nutrition behaviors for elementary school teachers who teach many participants in a crowded curriculum.  相似文献   
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In this article, we analyze a two‐semester effort to integrate writing instruction into a multi‐disciplinary sophomore engineering design course in Northern Arizona University's College of Engineering and Technology. Specifically, we describe the programmatic implementation and assessment approach to evaluate whether student writing improved over the course of the semester. After discussing the reasons for taking a writing‐intensive approach to engineering, we analyze the results of a pre‐and post‐test administered over the span of an academic semester. Although the outcome of our assessment did not show significant improvement, we argue that writing instruction is important for increasing students’ overall learning skills. We conclude by pointing out several benefits and disadvantages of trying to assess writing improvement over two one‐semester periods.  相似文献   
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Reflection on events at work, including errors is often as a means to learn effectively through work. In a cross-sectional field study in the banking sector, we investigated attitudes towards workplace errors (i.e. error orientation) as predictors of reflective activity. We assumed the organisational climate for psychological safety to have a mediating effect. The study participants were 84 client advisors from the retail banking departments in branches of a German bank. The client advisors’ were being affected by a range of changes in their workplaces at the time of the data collection. This situation afforded these workers opportunity for learning but also involved the risk of error by these staff. Regression analyses identified that error competence and learning from errors were significant predictors of reflection. The results confirmed the mediating role of psychological safety on the association between attitudes towards errors and reflective working behaviour.  相似文献   
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The aim of this study was to examine both positive and negative aspects of relationship quality in relation to condom use. Sexually active young women aged 14–18 years (n = 111; 34% non-white) were recruited from community clinics and schools in the Midwest USA and provided data via an online survey. The number of unprotected sex acts in the past month with the most recent male partner was regressed on relationship quality with that partner, adjusting for demographics and other characteristics. Negative relationship quality was associated with a greater number of unprotected sex acts among women reporting a low level of positive relationship quality and among women taking hormonal/IUD contraception. Positive relationship quality was associated with unprotected sex among women who reported multiple partners in the past month. Both positive and negative aspects of relationship quality may confer risk for unprotected sex. This risk appears to be modified by patterns of contraceptive use and other sexual behaviours. Health professionals and sexual health educators may be more effective in promoting condom use if they ask questions about both positive and negative aspects of young people’s relationship quality and tailor their conversations based on the responses received.  相似文献   
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This study assessed the effects of modest sleep restriction and extension on children's neurobehavioral functioning (NBF). The sleep of 77 children (age: M = 10.6 years; range = 9.1-12.2 years) was monitored for 5 nights with activity monitors. These children (39 boys and 38 girls) were all attending regular 4th- and 6th-grade classes. Their NBF was assessed using computerized tests on the 2nd day of their normal sleep schedule. On the 3rd evening, the children were asked to extend or restrict their sleep by an hour on the following 3 nights. Their NBF was reassessed on the 6th day following the experimental sleep manipulation. Sleep restriction led to improved sleep quality and to reduced reported alertness. The sleep manipulation led to significant differential effects on NBF measures. These effects may have significant developmental and clinical implications.  相似文献   
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Crowdsourcing platforms are commonly used for research in the humanities, social sciences and informatics, including the use of crowdworkers to annotate textual material or visuals. Utilizing two empirical studies, this article systematically assesses the potential of crowdcoding for less manifest contents of news texts, here focusing on political actor evaluations. Specifically, Study 1 compares the reliability and validity of crowdcoded data to that of manual content analyses; Study 2 proceeds to investigate the effects of material presentation, different types of coding instructions and answer option formats on data quality. We find that the performance of the crowd recommends crowdcoded data as a reliable and valid alternative to manually coded data, also for less manifest contents. While scale manipulations affected the results, minor modifications of the coding instructions or material presentation did not significantly influence data quality. In sum, crowdcoding appears a robust instrument to collect quantitative content data.  相似文献   
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ObjectiveTo evaluate the social and emotional adjustment of 219 children in families with varying levels of intimate partner violence (IPV) using a model of risk and protection. To explore factors that differentiate children with poor adjustment from those with resilience.MethodologyMothers who experienced IPV in the past year and their children ages 6–12 were interviewed. Standardized measures assessed family violence, parenting, family functioning, maternal mental health, and children's adjustment and beliefs.ResultsUsing cluster analysis, all cases with valid data on the Child Behavior Checklist, Child Depression Inventory, General Self-Worth and Social Self-Competence measures were described by four profiles of children's adjustment: Severe Adjustment Problems (24%); children who were Struggling (45%); those with Depression Only (11%); and Resilient (20%) with high competence and low adjustment problems. Multinomial logistic regression analyses showed children in the Severe Problems cluster witnessed more family violence and had mothers higher in depression and trauma symptoms than other children. Resilient and Struggling children had mothers with better parenting, more family strengths and no past violent partner. Parents of children with Severe Problems were lacking these attributes. The Depressed profile children witnessed less violence but had greater fears and worries about mother's safety.ConclusionFactors related to the child, to the mother and to the family distinguish different profiles of adjustment for children exposed to IPV who are living in the community. Resilient children have less violence exposure, fewer fears and worries, and mothers with better mental health and parenting skills, suggesting avenues for intervention with this population.Practice implicationsFindings suggest that child adjustment is largely influenced by parent functioning. Thus, services should be targeted at both the child and the parent. Clinical interventions shaped to the unique needs of the child might also be tested with this population.  相似文献   
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