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971.
Melissa Bond Olaf Zawacki-Richter Mark Nichols 《British journal of educational technology : journal of the Council for Educational Technology》2019,50(1):12-63
Reflecting on 50 years of educational technology research, a content and authorship analysis was conducted of 1777 research article titles and abstracts, published in the British Journal of Educational Technology (BJET) from 1970 to Issue 3, 2018. A text-mining tool (Leximancer) was used to identify key concepts and themes emerging throughout each of the five decades, which were then compared to those found in a previous analysis of Computers & Education, as well as the most cited BJET publications in each decade. The framework of West and Rich (2012) was then used to provide guidance on BJET’s rigour, impact and prestige. Common themes in BJET throughout the past 50 years have included the evolution of teaching and learning in distance education, the emergence of instructional design, misunderstanding between practitioners and learning designers, issues of pre and in-service teacher education and technology uptake by educators and students, including the confidence to do so, the technology skills of educators and students, as well as a lack of institutional support to provide space and time for training and integration to occur. The authorship analysis revealed an encouraging increase in international identity over time, with 60% of articles in BJET published by an author outside of the UK over the past 50 years, and 79% in the past decade. Despite this, contributions from South America, the Middle East and Africa are vastly underrepresented, and authors from these regions need further support from the field. Suggested future research areas include finding alternative models of educator professional development, further exploration of the role of theory and policy, as well as the rise of co-authorship and collaborative research. 相似文献
972.
Although one might expect parents’ mind-mindedness (MM; the propensity to view children as mental agents) to relate to everyday mental-state talk (MST) and theory-of-mind capacity, evidence to support this view is lacking. In addition, both the uniqueness and the specificity of relations between parental MM, parental MST, and children's false belief understanding (FBU) are open to question. To address these three gaps, this study tracked 117 preschoolers (60 boys) and their parents across a 13-month period (Mage = 3.94 years, SD = 0.53, at Time 1). Parental MM, MST, and theory-of-mind capacity showed little overlap. Both MM and MST were weakly associated with children's concurrent FBU, but in line with social constructivist accounts, only MST predicted later FBU. 相似文献
973.
Judith Lederman Norman Lederman Selina Bartels Juan Jimenez Mark Akubo Shereen Aly Chengcheng Bao Estelle Blanquet Ron Blonder Mariana Bologna Soares de Andrade Catherine Buntting Mustafa Cakir Heba EL-Deghaidy Ahmed ElZorkani Estelle Gaigher Shuchen Guo Arvi Hakanen Soraya Hamed Al-Lal Cigdem Han-Tosunoglu Annemarie Hattingh Anne Hume Serhat Irez Gillian Kay Ozgur Kivilcan Dogan Kerstin Kremer Pi-Chu Kuo Jari Lavonen Shu-Fen Lin Cheng Liu Enshan Liu Shiang-Yao Liu Bin Lv Rachel Mamlok-Naaman Christine McDonald Irene Neumann Yaozhen Pan Eric Picholle Ana Rivero García Carl-Johan Rundgren David Santibáñez-Gómez Kathy Saunders Renee Schwartz Frauke Voitle Jakob von Gyllenpalm Fangbing Wei Jocelyn Wishart Zhifeng Wu Huang Xiao Yalcin Yalaki Qiaoxue Zhou 《科学教学研究杂志》2019,56(4):486-515
Although understandings of scientific inquiry (as opposed to conducting inquiry) are included in science education reform documents around the world, little is known about what students have learned about inquiry during their elementary school years. This is partially due to the lack of any assessment instrument to measure understandings about scientific inquiry. However, a valid and reliable assessment has recently been developed and published, Views About Scientific Inquiry (VASI; Lederman et al. [2014], Journal of Research in Science Teaching, 51, 65–83). The purpose of this large-scale international project was to collect the first baseline data on what beginning middle school students have learned about scientific inquiry during their elementary school years. Eighteen countries/regions spanning six continents including 2,634 students participated in the study. The participating countries/regions were: Australia, Brazil, Chile, Egypt, England, Finland, France, Germany, Israel, Mainland China, New Zealand, Nigeria, South Africa, Spain, Sweden, Taiwan, Turkey, and the United States. In many countries, science is not formally taught until middle school, which is the rationale for choosing seventh grade students for this investigation. This baseline data will simultaneously provide information on what, if anything, students learn about inquiry in elementary school, as well as their beginning knowledge as they enter secondary school. It is important to note that collecting data from all of the approximately 200 countries globally was not humanly possible, and it was also not possible to collect data from every region of each country. The results overwhelmingly show that students around the world at the beginning of grade seven have very little understandings about scientific inquiry. Some countries do show reasonable understandings in certain aspects but the overall picture of understandings of scientific inquiry is not what is hoped for after completing 6 years of elementary education in any country. 相似文献
974.
Irrational beliefs have been linked to negative unhealthy emotions that can contribute to occupational burnout. Maladaptive cognitive schemas, such as irrational beliefs, are theorized to interfere with an appraisal of the perceived balance of resources and demands. The aim of the current study is to investigate the extent to which irrational beliefs account for occupational burnout among high school teachers when considering school resources, job demands, and teacher characteristics. A sample of 79 high school teachers, primarily from New York and New Jersey, completed self‐report questionnaires measuring burnout, the perception of school demands and availability of resources, and irrational beliefs. Among school‐based characteristics, correlational analyses indicated that burnout was positively related to school demands (i.e., student disrespect and student lack of attentiveness) and negatively related to school resources (i.e., support from the administration and colleagues), supporting previous research findings. Among teacher characteristics, burnout was negatively related to self‐efficacy and positively related to irrational beliefs. Results from regression analyses indicated that, whereas irrational beliefs were predictive of teacher burnout, they did not moderate the relationship between demands and burnout. Implications, limitations, and directions for future directions for research are discussed. 相似文献
975.
Mark A. Giesler 《图书馆管理杂志》2019,59(1):18-44
Public librarians are not always able or willing to embrace their role as providers of social and institutional capital for homeless patrons. Yet their position as gatekeepers impels them to do so. Through focus-group interviews with staff of homeless shelters in eight urban communities in one Midwestern state, this study explored the collaboration and communication between homeless shelters and public libraries. Findings indicate that homeless shelter staff recognize the value of public library services for their residents but do not engage in coordinated efforts to capitalize on it. Suggestions for enhanced collaboration between the two institutions are included. 相似文献
976.
Pavlov (1927/1960) reported that following the conditioning of several stimuli, extinction of one conditioned stimulus (CS) attenuated responding
to others that had not undergone direct extinction. However, this secondary extinction effect has not been widely replicated in the contemporary literature. In three conditioned suppression experiments with rats,
we further explored the phenomenon. In Experiment 1, we asked whether secondary extinction is more likely to occur with target
CSs that have themselves undergone some prior extinction. A robust secondary extinction effect was obtained with a nonextinguished
target CS. Experiment 2 showed that extinction of one CS was sufficient to reduce renewal of a second CS when it was tested
in a neutral (nonextinction) context. In Experiment 3, secondary extinction was observed in groups that initially received
intermixed conditioning trials with the target and nontarget CSs, but not in groups that received conditioning of the two
CSs in separate sessions. The results are consistent with the hypothesis that CSs must be associated with a common temporal
context during conditioning for secondary extinction to occur. 相似文献
977.
K. Ann Renninger Ming Cai Mark C. Lewis Margot M. Adams Katherine L. Ernst 《Educational technology research and development : ETR & D》2011,59(2):229-247
As hypermedia, online teacher professional development (TPD) should ideally support diverse learners to work with online content
effectively because it involves multiple representations and a nonlinear format. Differences among participants in motivation
and learning provide challenges for design. The present study is a use-inspired, mixed-method study of 164 teachers’ motivation
and learning in an unmoderated online workshop. It addresses participants’ demographic and motivational profiles, participation
in this type of workshop (e.g., the frequency, duration, and focus, as well as their work with technology-enhanced, nonroutine
challenge problems and journal assignments), the predictive value of the initial questionnaire, and implications for design.
Findings indicate that while three clusters of motivational profiles could be identified (low interest, low self-efficacy,
and less math; low interest, high self-efficacy, and more math; high interest, high self-efficacy, and more math), whether
the teachers continue to participate appears to be related to the structure and content of the workshop, not just these profiles.
Findings are interpreted as suggesting that the potential of hypermedia lies in its designers’ abilities to support participant
stake by providing for multiple ways into thinking and working with disciplinary content—design that both accommodates and
supports those with differing strengths and needs. Implications for studying motivation and learning online are also discussed. 相似文献
978.
Mark McDowell 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(2):185-194
There is currently much debate about the safety of the sport of softball. Batted‐ball speed and average pitcher reaction time are factors often used to determine safe performance. Batted‐ball speed is shown to be the most important factor to consider when determining safe play. Average pitcher reaction time is explained and directly correlated to batted‐ball speed. Eleven aluminum multi‐wall, three aluminum single‐wall and two composite softball bats were tested with mid‐compression polyurethane softballs averaging 1721 ±62 N/6.4 mm to represent the relative bat‐ball performance for the sport of slow‐pitch softball. Nine men and six women were chosen for this study out of a test group of over three hundred slowpitch softball players. On average, aluminum bat performance results were within the recommended safety limits established by the national softball associations. However, when composite bats were used, their performance results exceeded the recommended safety limits which can pose a significant safety risk. Using aluminum softball bats, batted‐ball speeds ranged from 80 to 145 km.h‐1. Using composite softball bats, batted‐ball speeds ranged from 146 to 161 km.h‐1. The scientific relevance of this study is to provide performance information that can lead to injury prevention in the sport of softball. 相似文献
979.
Gerwyn Hughes James Watkins Nick Owen 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(3):333-341
The aim of this study was to investigate gender differences in knee valgus angle and inter-knee and inter-ankle distances in university volleyball players when performing opposed block jump landings. Six female and six male university volleyball players performed three dynamic trials each for which they were instructed to jump up and block a volleyball suspended above a net set at the height of a standard volleyball net as it was spiked against them by an opposing player. Knee valgus/varus, inter-knee distance, and inter-ankle distance (absolute and relative to height) were determined during landing using three-dimensional motion analysis. Females displayed significantly greater maximum valgus angle and range of motion than males. This may increase the risk of ligament strain in females compared with males. Minimum absolute inter-knee distance was significantly smaller, and absolute and relative inter-knee displacement during landing significantly greater, in females than males. Both absolute and relative inter-ankle displacement during landing was significantly greater in males than females. These findings suggest that the gender difference in the valgus angle of the knee during two-footed landing is influenced by gender differences in the linear movement of the ankles as well as the knees. Coaches should therefore develop training programmes to focus on movement of both the knee and ankle joints in the frontal plane in order to reduce the knee valgus angle during landing, which in turn may reduce the risk of non-contact anterior cruciate ligament injury. 相似文献
980.
The purpose of this study was to analyze the introduction of the performance-based pay system (PPS) in Korean national universities through the perspective of institutional isomorphism. Using three isomorphism concepts of coercive, mimetic, and normative, and further framing the PPS within the overarching theoretical frameworks of governmentality, neoliberalism, myth, and policy convergence, this study explored the historical and social background of the PPS, the reason the Korean government pursued the PPS form used in the US higher education, and the main factors that affected its introduction in Korean national universities. The result of this analysis shows that while the institutionalization of the PPS in Korean national universities seemed closely associated with the radical political, economic change in Korean society, it was in fact an exemplar of isomorphism from the US model of public and private higher education. This isomorphic activity functioned simultaneously as a norm, social order, and myth within Korean higher education while faculty displayed an anti-isomorphic tendency against the power of the institutional isomorphism of PPS in national universities. 相似文献