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Maximiliano Contreras 《Equity & Excellence in Education》2013,46(1-2):77-80
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This study examines physical education pre-service teachers’ (PTs) self-efficacy and practicum experiences as self-efficacy sources through a mixed-method approach. For the quantitative phase, a self-efficacy questionnaire was applied to 141 PTs. Results showed a stronger self-efficacy in the relationship with students and discipline promotion. Lower self-efficacy was linked to instructional strategies. Concerning the qualitative phase, eight PTs were interviewed. PTs with higher self-efficacy reported professional experiences before practicum as mastery experiences. During the practicum they highlighted as mastery experiences: classes’ characteristics, planning and teaching practice; lesson observation as vicarious experiences; and post-lesson conversations as verbal persuasion. PTs with lower self-efficacy reported classes’ characteristics and teaching practice as failure experiences. Lesson observation was linked to negative vicarious experiences and post-lesson conversations were associated to negative emotions and the absence of verbal persuasion. This study’s results have implications inasmuch as they confirm the role of the practicum in teacher education programmes and the importance of training supervisors in the implementation and management of the training experience, thus contributing to PTs’ self-efficacy development. 相似文献
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English Learners (ELs) represent critical mass of K-12 students in public schools across the nation. However, states have failed to improve EL student academic outcomes, including college readiness. In 2013, California altered its school funding policy, providing additional support for English learners. Drawing on Vertical Equity and a Critical Community Strength Framework, this study examines the impact of local funding on college readiness among EL students by analyzing accountability plans and secondary data of 13 districts and assessing reforms using markers of college readiness. Document analysis shows: 1) school districts’ prioritization, 2) resource allocation based on those priorities, and 3) different approaches to operationalizing the construct of equity. Secondary data analysis reveals EL students lagged behind peers in performance on state assessments and enrollment in college preparatory and Advanced Placement varied across districts. These data confirm the critical need for intervention and targeted investment to raise overall college readiness rates among EL students in California and have national implications for states with growing Latino and EL student populations. 相似文献
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Ann C. Miller Nancy Rumaldo Guadalupe Soplapuco Alicia Condeso Betsy Kammerer Shannon Lundy Fabiola Faiffer Andy Montañez Karen Ramos Naysha Rojas Carmen Contreras Maribel Muñoz Hilda Valdivia Daojing Vilca Nandy Córdova Patricia Hilario Martha Vibbert Leonid Lecca Sonya Shin 《Child development》2021,92(6):e1275-e1289
This study is a randomized controlled trial of a 12-week community-based group parenting intervention (“CASITA”) in Lima, Peru. CASITA improved neurodevelopment in a pilot study of 60 Peruvian children and subsequently scaled to 3,000 households throughout the district. The objective of this study was to assess intervention effectiveness when implemented at scale. A total of 347 children ages 6–20 months (52.7% male, 100% identified as “mestizo”) at risk for developmental difficulties were randomized to immediate or delayed CASITA. At 3 months after enrollment, the immediate arm showed significantly higher overall development, based on the Extended Ages and Stages Questionnaire and Home Observation for Measurement of the Environment scores (Cohen’s ds = .36 and .31, respectively). Programs demonstrably effective at scale could help address children’s development risks worldwide. 相似文献
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Brad J. Schoenfeld Bret Contreras Gul Tiryaki-Sonmez Jeffrey M. Willardson Fabio Fontana 《Sports biomechanics / International Society of Biomechanics in Sports》2014,13(3):296-306
The purpose of the study was to compare core muscle activation of the tradition prone plank with a modified version performed with a long-lever and posterior-tilt using surface electromyography. To further determine if a specific component of this modified plank was more effective than the other in enhancing muscle activity, the plank with a long lever and the plank with a posterior pelvic tilt were studied individually. Nineteen participants performed all four variations of the plank for 30 seconds in a randomized order with 5-minute rest between exercise bouts. Compared to the traditional prone plank, the long-lever posterior-tilt plank displayed a significantly increased activation of the upper rectus abdominis (p < 0.001), lower abdominal stabilizers (p < 0.001), and external oblique (p < 0.001). The long-lever plank showed significantly greater activity compared to the traditional plank in the upper rectus abdominis (p = 0.015) and lower abdominal stabilizers (p < 0.001), while the posterior tilt plank elicited greater activity in the external oblique (p = 0.028). In conclusion, the long-lever posterior-tilt plank significantly increases muscle activation compared to the traditional prone plank. The long-lever component tends to contribute more to these differences than the posterior-tilt component. 相似文献
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Trueba G Contreras C Velazco MT Lara EG Martínez HB 《The Journal of perinatal education》2000,9(2):8-13
This research was conducted in a public general hospital in Mexico City, Mexico. The objective was to evaluate efficacy of the support given by a doula during labor to reduce cesarean rate. From March 1997 to February 1998, a group of 100 pregnant women were studied. These women were at term, engaged in an active phase of labor, exhibited 3 cm. or more cervical dilatation, were nuliparous, had no previous uterine incision, and possessed adequate pelvises. The group was randomly divided into two subgroups comprising 50 women, each: The first subgroup had the support of a childbirth educator trained as a doula, while the second subgroup did not have doula support. Measurements were recorded on the duration of labor, the use of pitocin, and whether or not the birth was a vaginal birth or cesarean section. Characteristics and gestational age were similar in both groups. Results confirmed that support by doulas during labor was associated with a significant reduction in cesarean birth and pitocin administration. There was a trend toward shorter labors and less use of epidurals. The results of this study showed, as in other trials measuring the impact of a doula's presence during labor and birth, that doula support during labor is associated with positive outcomes that have physical, emotional, and economic implications. 相似文献
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Schneider ML Moore CF Gajewski LL Larson JA Roberts AD Converse AK DeJesus OT 《Child development》2008,79(1):100-113
Disrupted sensory processing, characterized by over- or underresponsiveness to environmental stimuli, has been reported in children with a variety of developmental disabilities. This study examined the effects of prenatal stress and moderate-level prenatal alcohol exposure on tactile sensitivity and its relationship to striatal dopamine system function in thirty-eight 5- to 7-year-old rhesus monkeys. The monkeys were from four experimental conditions: (a) prenatal alcohol exposed, (b) prenatal stress, (c) prenatal alcohol exposed + prenatal stress, and (d) sucrose controls. Increased D(2) receptor binding in the striatum, evaluated using positron emission tomography neuroimaging, was related to increased withdrawal (aversion) responses to repetitive tactile stimuli and reduced habituation across trials. Moreover, prenatal stress significantly increased overall withdrawal responses to repetitive tactile stimulation compared to no prenatal stress. 相似文献
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Martins João Onofre Marcos Mota João Murphy Chris Repond Rose-Marie Vost Helen Cremosini Bruno Svrdlim Andjelko Markovic Mojca Dudley Dean 《Prospects》2021,50(1-2):13-30
PROSPECTS - This paper addresses the inadequate understanding of the concept of physical literacy (PL), often originating from complex terminology and philosophical language used in the current... 相似文献