The influence of preexposure to the CS on classically conditioned heart rate was examined in three groups of rats receiving either 0, 10, or 50 CS-alone trials prior to the beginning of acquisition training. The conditioned response was a deceleration in heart rate for all groups. Compared to the 50 group, the 0 and 10 groups both showed a lower overall level of conditioning performance and a slower rate of development of the conditioned response. It was suggested that the presence of the nonhabituated orienting response may have interfered with the conditioning process. 相似文献
Contextual problems involving rational numbers and proportional reasoning were presented to seventh grade students with different curricular experiences. There is strong evidence that students in reform curricula, who are encouraged to construct their own conceptual and procedural knowledge of proportionality through collaborative problem solving activities, perform better than students with more traditional, teacher-directed instructional experiences. Seventh grade students, especially those who study the new curricula, are capable of developing their own repertoire of sense-making tools to help them to produce creative solutions and explanations. This is demonstrated through analysis of solution strategies applied by students to a variety of rate problems. 相似文献
Mechanography during the vertical jump may enhance screening and determining mechanistic causes underlying physical performance changes. Utility of jump mechanography for evaluation is limited by scant test-retest reliability data on force-time variables. This study examined the test-retest reliability of eight jump execution variables assessed from mechanography. Thirty-two women (mean±SD: age 20.8 ± 1.3 yr) and 16 men (age 22.1 ± 1.9 yr) attended a familiarization session and two testing sessions, all one week apart. Participants performed two variations of the squat jump with squat depth self-selected and controlled using a goniometer to 80º knee flexion. Test-retest reliability was quantified as the systematic error (using effect size between jumps), random error (using coefficients of variation), and test-retest correlations (using intra-class correlation coefficients). Overall, jump execution variables demonstrated acceptable reliability, evidenced by small systematic errors (mean±95%CI: 0.2 ± 0.07), moderate random errors (mean±95%CI: 17.8 ± 3.7%), and very strong test-retest correlations (range: 0.73–0.97). Differences in random errors between controlled and self-selected protocols were negligible (mean±95%CI: 1.3 ± 2.3%). Jump execution variables demonstrated acceptable reliability, with no meaningful differences between the controlled and self-selected jump protocols. To simplify testing, a self-selected jump protocol can be used to assess force-time variables with negligible impact on measurement error. 相似文献
Background: In Aotearoa New Zealand, as it is internationally, there is a desire to ensure physical education is inclusive of all students regardless of their abilities. Yet, medical discourses associated with disability continue to position students who are perceived as not having the capacity to participate fully in traditional physical education programmes as the teacher’s ‘helper’, ‘helped’, or ‘helpless’. As a result, these students may have negative experiences of physical education and this can impact on future involvement in movement-related activities within school and community settings.
Methodology: Drawing on the data from a larger critical participatory action research project, we explore how one primary school teacher, Joel, attempted to work more inclusively within physical education. Specifically, we draw from personal journaling, student work and records of dialogical conversations to shed light on Joel’s experiences.
Conclusion: Joel’s experience demonstrates that there is not one singular solution to inclusion within physical education and it is a combination of actions that support this process. In Joel’s case, this included becoming a reflexive practitioner, getting to know his students, being receptive as opposed to respective to difference in positive ways rather than seeing this as limiting, working imaginatively to reconsider what constitutes learning in physical education, and sharing ownership for curriculum design and learning with his students. Working in this way illustrates how a multi-layered approach can make a difference to how all the students in a class experience inclusion, including students positioned as disabled. 相似文献
This paper outlines the research method used in Phase II of the Law Student Assessment Project; it indicates the trend of the results and shows how they relate to the findings of Phase I of the project.(1TRIBE, D. and TRIBE, A. J.1988. “Assessing Law Students: Lecturers Attitudes and Practices”. Assessment and Evaluation in Higher Education, 13(3): 195[Taylor & Francis Online][Google Scholar]) 相似文献
The aim of the present research was to examine adolescents’ definitions of bullying in a nationally representative sample of adolescents in Ireland. Definitions of bullying were examined according to age, gender, and bullying experiences. A sample of 4358 adolescents aged 12–19 years (M?=?14.99 years, SD?=?1.63) provided their definitions of bullying as part of the My World Survey-Second Level. The definitions were explored using content analysis. Adolescents differed in terms of their definition of bullying, with younger students frequently describing the nature of bullying as mean, while older students displayed a heightened awareness of the feelings associated with being a victim of bullying. Older females and those who had experienced bullying were more likely to discuss the emotions associated with bullying compared to males and those who had not been bullied. Adolescent definitions of bullying were not in line with widely accepted researcher definitions. Recommendations are made for researchers and those designing anti-bullying interventions and educational programmes. 相似文献