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Jacob E. Barkley Ellen Glickman Curtis Fennell Mallory Kobak Megan Frank Gregory Farnell 《Journal of sports sciences》2019,37(7):735-740
Low-cost physical activity monitors may provide a more accurate measure of physical activity than subjective methods (e.g., self-report) while being less costly than research-grade accelerometers. The present study assessed the validity of a low-cost monitor (Movband 2) to estimate physical activity behavior/intensity. Participants (N = 23, n = 16 female, BMI = 22.9 ± 4.0 kg/m2, age = 21.9 ± 1.6 years) completed four, five-minute treadmill stages (2.0, 3.0, 4.0, 5.0 MPH) while wearing both the Movband and the previously-validated Actigraph monitor. Oxygen consumption (VO2) was recorded during each stage (Laboratory assessment). A subset (n = 15, n = 10 female, BMI = 22.2 ± 3.2 kg/m2, age = 21.5 ± 0.8 years) of these participants then wore the two accelerometers for three days (Free-living assessment). During the Laboratory assessment there were strong, significant (r = 0.94, p ≤ 0.001) relationships between Movband and Actigraph counts and VO2. During Free-living assessment there was also a strong, significant (r = 0.97, p < 0.001) correlation between Movband and Actigraph counts. The low-cost, Movband accelerometer appears to provide a valid assessment of physical activity behavior/intensity. 相似文献
123.
Megan McPherson Kylie Budge Narelle Lemon 《International Journal for Academic Development》2015,20(2):126-136
Using social media platforms to build informal learning processes and social networks is significant in academic development practices within higher education. We present three vignettes illustrating academic practices occurring on Twitter to show that using social media is beneficial for building networks of academics, locally and globally, enhancing information flows, inspiring thinking, and motivating academic practice. Using a reflective and diffractive methodology, we illuminate how different flows of forces and relations are enacted. We argue it is in this fluidity of informal learning that perspectives are contested and shaped, and that academic developers can benefit by encompassing such practices. 相似文献
124.
In interviews as part of a research study of structural reform in England, some tension between primary head teachers and their secondary peers was evident. This was symptomatic of a long-standing difference in status between the two phases. At a time when relations between stakeholders in local systems are subject to change, we seek to understand anew why that might be the case and how the tension we found was evidence of a current difference of power within interactions between representatives of the phases. We analyse differences of size, resources, workforce, pedagogy and history, and how they have resulted in different, and differently valued, practices and professional identities. We explore how attributes of the two phases have been counterposed and how, in complex interaction with wider discourses of politics, gender and age, this process has invested the differences with meanings and values that tend to relegate attributes associated with primary school. By focusing on the activation of cumulative inequality in interactions, we contribute a complementary perspective to studies of perceived relative status and highlight the implications for understanding school positioning in local arenas as the role of local authorities is reduced. 相似文献
125.
Diana Raufelder Frances Hoferichter David Schneeweiss Megan A. Wood 《Psychology in the schools》2015,52(5):447-462
Based on cognitive evaluation theory (CET) and organismic integration theory (OIT) – both sub‐theories of self‐determination theory (SDT) – the present study examined whether the academic self‐regulation of youth with test anxiety can be strengthened through social and motivational relationships with peers and teachers. This study employed a large sample (N = 1088; MAge = 13.7) of early adolescents from secondary schools in Brandenburg, Germany. Structural equation modeling (SEM) was used to test the proposed associations. The results revealed a negative association between test anxiety and intrinsic motivation as well as test anxiety and identified regulation, which was fully mediated by teachers as positive motivators. Furthermore, both teachers as positive motivators as well as the teacher‐student relationship were found to be strong predictors of the self‐determined aspects of academic self‐regulation. Additionally, both peers as positive motivators and the student‐student relationship are essential for external self‐regulation. 相似文献
126.
Joseph P. Allen Megan M. Schad Barbara Oudekerk Joanna Chango 《Child development》2014,85(5):1866-1880
Pseudomature behavior—ranging from minor delinquency to precocious romantic involvement—is widely viewed as a nearly normative feature of adolescence. When such behavior occurs early in adolescence, however, it was hypothesized to reflect a misguided overemphasis upon impressing peers and was considered likely to predict long‐term adjustment problems. In a multimethod, multireporter study following a community sample of 184 adolescents from ages 13 to 23, early adolescent pseudomature behavior was linked cross‐sectionally to a heightened desire for peer popularity and to short‐term success with peers. Longitudinal results, however, supported the study's central hypothesis: Early adolescent pseudomature behavior predicted long‐term difficulties in close relationships, as well as significant problems with alcohol and substance use, and elevated levels of criminal behavior. 相似文献
127.
128.
Ellen Galinsky Jackie Bezos Megan McClelland Stephanie M. Carlson Philip D. Zelazo 《Child development》2017,88(5):1409-1418
Mind in the Making and Vroom are partner initiatives that exemplify a unique “civic science” approach to “bringing developmental science into the world.” Mind in the Making offers families and professionals working with children 0–8 access to developmental research, by engaging them in an active process of professional development and community outreach. Vroom is an outreach and communication initiative that brings “brain building basics” to communities, inviting parents to participate in the science of early learning through partnerships with trusted entities. These initiatives use collaborative, iterative processes in disseminating findings and implications of child development research. Preliminary evidence shows early promise of these initiatives to help promote engaged learning and life skills based on executive function in adults and children. 相似文献
129.
Susan A. Gelman Megan Martinez Natalie S. Davidson Nicholaus S. Noles 《Child development》2018,89(1):17-26
New technology poses new moral problems for children to consider. We examined whether children deem object tracking with a mobile GPS device to be a property right. In three experiments, 329 children (4–10 years) and adults were asked whether it is acceptable to track the location of either one's own or another person's possessions using a mobile GPS device. Young children, like adults, viewed object tracking as relatively more acceptable for owners than nonowners. However, whereas adults expressed negative evaluations of someone tracking another person's possessions, young children expressed positive evaluations of this behavior. These divergent moral judgments of digital tracking at different ages have profound implications for how concepts of digital privacy develop and for the digital security of children. 相似文献
130.
Shonfeld Miri Cotnam-Kappel Megan Judge Miriam Ng Carolyn Yeehan Ntebutse Jean Gabin Williamson-Leadley Sandra Yildiz Melda N. 《Educational technology research and development : ETR & D》2021,69(4):2151-2170
Educational technology research and development - This article presents a conceptual model of cross-cultural alignments in education in the digital era. The intention was to explore and respond to... 相似文献