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81.
In Pavlovian fear conditioning, context-mediated decrements in conditioned responding (e.g., the US preexposure effect) can
counteract competition between cues trained together (e.g., overshadowing). Two experiments were conducted using rats in a
conditioned lick suppression preparation to determine whether context-mediated competition also counteracts competition between
cues trained separately (retroactive interference, or RI). In Experiment 1, a combination of degraded contingency and RI treatments
produced less of a decrement in conditioned responding than did either of those treatments alone. Experiment 2 showed that
RI treatment attenuates the normally deleterious effect of trial massing. The results suggest that empirical similarities
are shared by interference between cues trained apart and competition between cues trained together. 相似文献
82.
Vaughan Van Hecke A Mundy PC Acra CF Block JJ Delgado CE Parlade MV Meyer JA Neal AR Pomares YB 《Child development》2007,78(1):53-69
Infant joint attention has been observed to be related to social-emotional outcomes in at-risk children. To address whether this relation is also evident in typically developing children, 52 children were tested at 12, 15, 24, and 30 months to examine associations between infant joint attention and social outcomes. Twelve-month initiating and responding to joint attention were related to 30-month social competence and externalizing behavior, even when accounting for 15-month temperament ratings, 24-month cognition and language, and demographic variables. These results suggest that, in addition to associations with language and cognition, infant joint attention reflects robust aspects of development that are related to individual differences in the emergence of social and behavioral competence in childhood. 相似文献
83.
Rogers Kaliisa Edward Palmer Julia Miller 《British journal of educational technology : journal of the Council for Educational Technology》2019,50(2):546-561
The purpose of this paper is to compare and contrast characteristics of use and adoption of mobile learning in higher education in developed and developing countries. A comparative case study based on a survey questionnaire was conducted with 189 students (undergraduate and postgraduate) from Makerere University in Uganda and the University of Adelaide in Australia. The Unified Theory of Acceptance and Use of Technology (UTAUT) was employed as the theoretical framework. The results indicated that higher education students in developed and developing countries use a range of technologies for learning, with major differences between Uganda and Australia. The study concludes that mobile learning in higher education in developed and developing country contexts is still at an experimental stage with students using mobile devices in pedagogically limited ways. 相似文献
84.
Amy M. Magnus Jenny S. West Daniel W. Scott Cheryl Maxson Jody Miller 《Journal of Criminal Justice Education》2019,30(2):223-249
This paper describes our efforts to systematically generate knowledge from ethnographic and other qualitative scholarship as a way of bridging intellectual gaps found in quantitative research. We ground this scholarly endeavor in the study of gangs, which has a lengthy history in the field of criminology, yet lacks a coherent, coordinated, and comparative understanding of gang dynamics, behavior, and impacts. We discuss the importance of acknowledging the multiple and mixed methodologies used in gang scholarship and detail the inductive, deductive, and iterative process that helped us (1) develop a comprehensive coding instrument for coding a range of qualitative works, (2) establish the instrument’s inter-rater reliability, and (3) remain cognizant and reflexive about the strengths of both quantitative and qualitative research. Finally, we share the critical yet informative challenges we faced throughout the project and conclude with reflections on why the project was unsuccessful in the way we originally envisioned. 相似文献
85.
86.
Effective educational leadership is essential for the success of schools and ultimately student achievement. The impact of school leadership may be even more pronounced in charter schools. Due to current and unprecedented growth, unique design, and complexities of political, financial, and governance issues they face, there is a need for more highly qualified charter school leaders and perhaps even “differently” prepared leaders. In this qualitative study, the authors documented the characteristics and skills of two successful, sustained charter school leaders who retrospectively described their evolved and evolving roles over twenty five years. Each transformed high-poverty, low-performing schools with at-risk populations and led with vision, passion, and a relentless desire to positively influence their organizations and ultimately improve student success in their communities. Although many of their skills and characteristics fall within existing theories, such as situational leadership, transformational leadership, and distributive leadership, they embodied a level of dedication and commitment to the original communities in which they founded charters lasting over a quarter of a century. The findings suggest that founding a charter school and seeing it through to success over time may more closely resemble missionary work than traditional school leadership. 相似文献
87.
Megan von Spreckelsen Emma Dove Ilse Coolen Annelot Mills Ann Dowker Kathy Sylva Daniel Ansari Rebecca Merkley Victoria Murphy Gaia Scerif 《Mind, Brain, and Education》2019,13(4):326-340
Developmental cognitive neuroscience highlights the importance of interactions between children and their environment. As young children spend increasing time in childcare, it is key to investigate the impact of “maths‐talk” and maths provisions in preschools. Qualitative insights from early educators indicate a greater bias toward counting activities than would be expected given the Early Years curriculum. In addition, we quantified the observed breadth of preschool practitioners' maths language (e.g., place‐value language), setting‐based maths provisions (e.g., quality of maths‐related activities), and their relation with children's early numeracy skills. In settings with greater practitioners' breadth of maths language, children display greater cardinality skills although our data call for the further investigation of parental socioeconomic status and education. We conclude with a discussion on the need to operationalize children's maths learning environments as diversely as possible. Enriching practitioners' skill sets may be an effective and needed way of improving early maths outcomes. 相似文献
88.
Rebecca J. M. Gotlieb Courtney Pollack Jessica W. Younger Elizabeth Y. Toomarian Genevive Allaire‐Duquette Nadja M. Mariager 《Mind, Brain, and Education》2019,13(3):120-132
An increasing number of scholars are being trained in the field of mind, brain, and education (MBE), yet discussions of trainees' needs and how to meet them are rare. We, the inaugural International Mind, Brain, and Education Society (IMBES) Trainee Board, identify three broad needs of MBE trainees: guidance and support, greater access to and connections among the MBE community, and professional development. We report a first step to address these needs: a daylong trainee conference, which included sessions to foster connections among trainees, provide mentorship from MBE leaders, and provide knowledge and skill building for careers. Attendees' survey results suggest the conference successfully supported trainees' development. As substantial trainee needs remain, we offer specific ways that principal investigators, institutions, funding agencies, future IMBES trainee boards, and the MBE community can further address trainees' needs to support early‐career development and strengthen the MBE field generally. 相似文献
89.
Roghayeh Barmaki Kevin Yu Rebecca Pearlman Richard Shingles Felix Bork Greg M. Osgood Nassir Navab 《Anatomical sciences education》2019,12(6):599-609
Students in undergraduate premedical anatomy courses may experience suboptimal and superficial learning experiences due to large class sizes, passive lecture styles, and difficult-to-master concepts. This study introduces an innovative, hands-on activity for human musculoskeletal system education with the aim of improving students’ level of engagement and knowledge retention. In this study, a collaborative learning intervention using the REFLECT (augmented reality for learning clinical anatomy) system is presented. The system uses the augmented reality magic mirror paradigm to superimpose anatomical visualizations over the user’s body in a large display, creating the impression that she sees the relevant anatomic illustrations inside her own body. The efficacy of this proposed system was evaluated in a large-scale controlled study, using a team-based muscle painting activity among undergraduate premedical students (n = 288) at the Johns Hopkins University. The baseline knowledge and post-intervention knowledge of the students were measured before and after the painting activity according to their assigned groups in the study. The results from knowledge tests and additional collected data demonstrate that the proposed interactive system enhanced learning of the musculoskeletal system with improved knowledge retention (F(10,133) = 3.14, P < 0.001), increased time on task (F(1,275) = 5.70, P < 0.01), and a high level of engagement (F(9,273) = 8.28, P < 0.0001). The proposed REFLECT system will be of benefit as a complementary anatomy learning tool for students. 相似文献
90.
Rebecca Webb 《Gender and education》2019,31(2):258-273
This paper engages with some everyday ways of doing and being gender which proceed from a dominant liberal rights policy and practice discourse within one English ‘rights-respecting’ primary school in England. Drawing on three ethnographic vignettes of data from different spaces within the school, it utilises a Butlerian analytic to interrogate the kinds of subjects that children are entitled and obliged to be as they take up different subject positions proposed to them in the school. The paper engages with this empirical data, to foster and ignite critical sensibilities, especially as these relate to ‘taken-for-granted’ discourses of children’s rights which presume the participation of all children regardless of their differently gendered subjectivities. This analysis puts in question the universal, normative and essentialising effects of the category of the rights-respecting child as always unproblematic and forever productive. 相似文献