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381.
382.
We used communication infrastructure theory to investigate oral health beliefs and behavior among young adults in Appalachian Kentucky. We conducted 7 focus groups with 67 participants who reported poor oral health behavior, but this was not necessarily the result of poor oral health knowledge. Participants identified several sociocultural factors affecting their oral health, including lack of oral health prioritization among older generations, and risky health behaviors that competed with good oral health. These sociocultural factors create a context in which standard oral health recommendations are commonly seen as excessive. Participants described various responses to the poor oral health in the region, including fatalism and a distrust of dentists, and that oral healthcare professionals may be using potentially problematic communication tactics. Practical implications for designing effective oral health promotion campaigns in the region and theoretical implications for developing social-contextual frameworks of oral health promotion are discussed.  相似文献   
383.
Drawing valid inferences from item response theory (IRT) models is contingent upon a good fit of the data to the model. Violations of model‐data fit have numerous consequences, limiting the usefulness and applicability of the model. This instructional module provides an overview of methods used for evaluating the fit of IRT models. Upon completing this module, the reader will have an understanding of traditional and Bayesian approaches for evaluating model‐data fit of IRT models, the relative advantages of each approach, and the software available to implement each method.  相似文献   
384.
The present study investigated the effectiveness of a novel class‐wide intervention, the Classroom Password, for increasing the academic engaged behavior of middle school students. The effectiveness of an independent group contingency was evaluated using a concurrent multiple baseline design across three seventh‐ and eighth‐grade classrooms. Results indicated that the intervention was effective across all three classrooms in increasing students’ academic engagement, or on‐task behavior, as evidenced by visual analysis and moderate to large effect sizes. Decreases in disruptive behavior were also observed across all three classrooms. Off‐task behavior was not substantially affected in any of the three classrooms. The intervention received mixed ratings by the classroom teachers regarding its social validity. Results of the present study suggest that the Classroom Password may be an effective class‐wide intervention for increasing the academically engaged behavior and decreasing the disruptive behavior of middle school students during instructional time.  相似文献   
385.
A developmentally appropriate learning environment for young children is vital for successful learning. However, implementing developmentally appropriate practices can be a challenge for 1st-year teachers because of the pressures of standardized testing. The purpose of this study was to examine the struggles teachers encounter in implementing developmentally appropriate practices in their 1st year and to identify what helped them overcome those obstacles. We conclude with several ideas for teacher preparation programs as well as suggestions for 1st-year teachers.  相似文献   
386.
US adolescents initiate sex at increasingly younger ages, yet few pregnancy prevention interventions for children as young as 10-12 years old have been evaluated. Sixteen Washington, DC schools were randomly assigned to intervention versus control conditions. Beginning in 2001/02 with fifth-grade students and continuing during the sixth grade, students completed pre-intervention and post-intervention surveys each school year. Each year, the intervention included 10-13 classroom sessions related to delaying sexual initiation. Linear hierarchical models compared outcome changes between intervention and control groups by gender over time. Results show the intervention significantly decreased a rise over time in the anticipation of having sex in the next 12 months among intervention boys versus control boys, but it had no other outcome effects. Among girls, the intervention had no significant outcome effects. One exception is that for both genders, compared with control students, intervention students increased their pubertal knowledge. In conclusion, a school-based curriculum to delay sexual involvement among fifth-grade and sixth-grade high-risk youths had limited impact. Additional research is necessary to outline effective interventions, and more intensive, comprehensive interventions may be required to counteract adverse circumstances in students' lives and pervasive influences toward early sex.ClinicalTrials. gov identifier: NCT00341471.  相似文献   
387.
Journal of Science Education and Technology - Guiding teachers to customize curriculum has shown to improve science instruction when guided effectively. We explore how teachers use student data to...  相似文献   
388.
Research Findings: Despite the abundance of research suggesting that preschool classroom quality influences children's social-emotional development, the equally important and related question of how characteristics of children enrolled in a classroom influence classroom quality has rarely been addressed. The current article focuses on this question while also considering teacher stress as a mediator of the relationship between child behavior problems and classroom emotional climate. Data came from 2 low-income samples. Ordinary least squares regression revealed that higher levels of child externalizing behavior problems in the fall predicted higher teacher stress in the spring. Teacher stress was nonlinearly related to classroom emotional climate in the spring: Moderate levels of teacher stress were associated with higher (i.e., more positive) classroom emotional climates, and low and high levels of teacher stress were associated with lower classroom emotional climates. Contrary to expectations, higher levels of child externalizing behavior problems were related to higher classroom emotional climates. There was no evidence that teacher stress mediated this relationship. Practice or Policy: These results are discussed in terms of strategies to reduce the disruptive influence of child behavior problems on the classroom emotional climate as well as strategies to limit high levels of preschool teacher stress.  相似文献   
389.
This paper describes a revised measure of self-efficacy to overcome barriers to moderate and vigorous physical activity in a sample of 484 high school students in Toronto, Ontario. The students had a mean age of 15.3 years. Principal axis factoring with oblique rotation yielded five factors: self-efficacy to overcome internal, harassment, physical environment, social environment, and responsibilities barriers. Two problematic items were removed, which resulted in a 22-item measure. Subsequent analyses were conducted on responses to this shortened measure. Confirmatory factor analysis supported the five-factor model and demonstrated age- and sexinvariance. The subscales had good internal consistency reliability. Structural regressions demonstrated a strong relationship between the resulting factors and a physical activity measure (energy expenditure), showing predictive validity.  相似文献   
390.
Using data from the 2008 University of California Undergraduate Experience Survey, we show that study time and academic conscientiousness were lower among students in humanities and social science majors than among students in science and engineering majors. Analytical and critical thinking experiences were no more evident among humanities and social sciences majors than among science and engineering majors. All three academically beneficial experiences were, however, strongly related to participation in class and interaction with instructors, and participation was more common among humanities and social sciences students than among science and engineering students. Bok’s (Our underachieving colleges: A candid look at how much students learn and why they should be learning more. Princeton and Oxford: Princeton University Press, 2006) influential discussion of “underachievement’ in undergraduate education focused on institutional performance. Our findings indicate that future discussions should take into account differences among disciplinary categories and majors as well.  相似文献   
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