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891.
Sheri Madigan Mark Wade Andre Plamondon Kyla Vaillancourt Jennifer M. Jenkins Michelle Shouldice Diane Benoit 《Child abuse & neglect》2014
The aim of the current study was to increase understanding of how victimization history impacts the longitudinal course of depression and anxiety in a sample of 55 adolescents emerging into parenthood. Adolescents were interviewed about their victimization experiences during their second trimester of pregnancy, and interviews were subsequently classified according the Maltreatment Classification Scale (Barnett, Manly, & Cicchetti, 1993). Adolescents reported on their symptoms of depression and anxiety prenatally and 6 and 12 months postpartum. Growth curve modeling revealed that, on average, there was a steady linear decline in depression and anxiety symptoms across the transition to parenthood, with a rate of change of 25% and 20%, respectively, from the prenatal assessment to 12 months postpartum. Sexual abuse history attenuated the likelihood of a decrease in depressive symptoms over time. Neglect history was associated with higher prenatal levels of anxiety, as well as a steeper decline in anxiety symptoms over time. Future research is needed to determine the role of poly-victimization in predicting the onset and change of depression and anxiety symptoms. Findings from the current study have the potential to aid in the design of preventative and intervention efforts to reduce risks of mental health difficulties in adolescent parents. 相似文献
892.
893.
Michelle Spencer 《Performance Improvement》2014,53(9):7-9
This article is a lighthearted look at how people's attitudes changed over time in relation to their mobile phones, what the drivers of that change were, and what we can learn from that. 相似文献
894.
Michelle Blackburn 《Action Learning: Research and Practice》2014,11(1):81-87
This account of practice focuses on the delivery of Action Learning Sets in Swaziland and Malawi as part of a UK university's remote Master's degree teaching programme. It draws upon the experience of an Academic delivering the programme and the efforts made to refine the approach to action learning given time, understanding and resource challenges. The outcome of limited research on the benefits of Action Learning Sets is shared within this context. 相似文献
895.
William Romine Troy D. Sadler Morgan Presley Michelle L. Klosterman 《International Journal of Science and Mathematics Education》2014,12(2):261-283
This study presents the systematic development, validation, and use of a new instrument for measuring student interest in science and technology. The Student Interest in Technology and Science (SITS) survey is composed of 5 sub-sections assessing the following dimensions: interest in learning science, using technology to learn science, science careers, technology careers, and attitudes toward biotechnology. Our development process included review of existing instrumentation, pilot testing, and expert panel review. The resulting instrument was administered before and after implementation of a biotechnology intervention which used a computer-based game to engage learners in the use of biotechnology to address a societal issue. We employed item response theory (IRT) to explore instrument validity and precision. Results of the psychometric analyses suggest that the SITS survey has a well-defined structure and meets IRT assumptions. Difficulty and discrimination parameters as well as reliability analyses indicate that SITS items provide useful measures of student interest. Finally, we use the SITS to explore the extent to which the intervention used in this study supports changes in student interest and association between students’ interest and related content knowledge. Implications for the future use of this instrument are discussed. 相似文献
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Michelle L. Manning Gareth Irwin Marianne J. R. Gittoes David G. Kerwin 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(3):161-173
Tkachev on uneven bars is a release and re-grasp skill performed using variations of preparatory longswing techniques; the reasons why different techniques are chosen remains unclear. This study examined kinematic and key release parameters specific to three distinct techniques with the aim of understanding the relative benefits of each. During two international artistic gymnastics competitions six arch, straddle and pike longswings preceding the straddle Tkachev were recorded using twin video cameras. Calibration and movement images were digitised and reconstructed using 3D DLT. Shoulder and hip angular kinematics, angular momentum and key release parameters were compared between techniques. In the arch longswing, the first and second hip functional phases began significantly earlier than the straddle or pike. No significant differences were established for release parameters although large effect sizes for horizontal release velocity and angular momenta about the mass centre and bar were reported between the arch and other two variants. Therefore, the arch variant may provide the opportunity to develop more complex combinations following the Tkachev. Providing insight into mechanical advantages of specific longswing techniques, and highlighting those that elicit desirable characteristics offers the potential to provide coaches with objective data on technique selection and ultimately skill development. 相似文献
898.
In this study, we used Rasch model analyses to examine (1) the unidimensionality of the alphabet knowledge construct and (2) the relative difficulty of different alphabet knowledge tasks (uppercase letter recognition, names, and sounds, and lowercase letter names) within a sample of preschoolers (n = 335). Rasch analysis showed that the four components of alphabet knowledge did work together as a unidimensional construct, indicating all alphabet tasks administered were measuring the same underlying skill. With regard to difficulty of tasks, letter recognition was easier than letter naming, which in turn was easier than letter sounds, and uppercase letter names were easier than lowercase letter names. Most notably, most of the alphabet tasks overlapped, and the Rasch models for the single tasks were no more reliable than the combined measure. This suggests that these alphabetic tasks do not measure distinct skills but are instead indicators of a single ability. Consequently, we support the conceptualization of alphabet knowledge as a unitary construct, and suggest that those assessing and teaching alphabet knowledge in preschool use tests and methods that combine the various alphabetic tasks rather than separating them. These combined assessments will be more likely to capture the range of abilities within a preschool sample and avoid the floor and ceiling effects that have so often complicated early literacy research. 相似文献
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900.
ABSTRACTResearch in academic development more often articulates stories of success than of failure in our practice. Using a self-study methodology involving written reflections and analysis of recorded conversations, this article explores how two mid-career developers define and learn from feelings of failure in the context of group facilitation. Through reflection and discussion as critical friends, we identified a series of tensions that shape our work and our identities as developers. How we reflect upon and navigate through these potentially uncomfortable places has implications for how we reframe our feelings of failure and evolve our practice. 相似文献