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When dealing with complex conceptual systems, low-prior- knowledge learners develop fragmentary and incorrect understanding. To learn complex topics deeply, these learners have to (a) monitor understanding to detect flaws and (b) generate explanations to revise and repair the flaws. In this research we explored if the detection of a flaw in understanding does lead to the generation of a revising explanation or, alternatively, if there is some independence between the two processes. In two studies participants with low prior domain knowledge learned about plate tectonics from a multimedia presentation. In Study 1 participants in two conditions received support for detection and their performance was compared to that of participants in two control conditions, one receiving no support and another one receiving support for both detection and revision. Performance on retention, transfer, and distortions revealed that the conditions with support for detection were not different from that with no support. The condition with support for both detection and revision was significantly better than all others. In Study 2 participants thought aloud while studying from the presentation. Self-generated detections were not correlated with revising explanations or with performance on retention or transfer measures. Overall, the results indicate that the detection of flaws in understanding does not necessarily lead to the generation of explanations to repair the flaws, meaning that this latter process is very difficult to execute and calls for instructional support. 相似文献
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Google Scholar,Web of Science,and Scopus: A systematic comparison of citations in 252 subject categories 总被引：1，自引：0，他引：1
Alberto Martín-Martín Enrique Orduna-Malea Mike Thelwall Emilio Delgado López-Cózar 《Journal of Informetrics》2018,12(4):1160-1177
Despite citation counts from Google Scholar (GS), Web of Science (WoS), and Scopus being widely consulted by researchers and sometimes used in research evaluations, there is no recent or systematic evidence about the differences between them. In response, this paper investigates 2,448,055 citations to 2299 English-language highly-cited documents from 252 GS subject categories published in 2006, comparing GS, the WoS Core Collection, and Scopus. GS consistently found the largest percentage of citations across all areas (93%–96%), far ahead of Scopus (35%–77%) and WoS (27%–73%). GS found nearly all the WoS (95%) and Scopus (92%) citations. Most citations found only by GS were from non-journal sources (48%–65%), including theses, books, conference papers, and unpublished materials. Many were non-English (19%–38%), and they tended to be much less cited than citing sources that were also in Scopus or WoS. Despite the many unique GS citing sources, Spearman correlations between citation counts in GS and WoS or Scopus are high (0.78-0.99). They are lower in the Humanities, and lower between GS and WoS than between GS and Scopus. The results suggest that in all areas GS citation data is essentially a superset of WoS and Scopus, with substantial extra coverage. 相似文献
63.
The purpose of this study was to cross-validate a model of relationships among social-contextual factors, individual differences, and intrinsic motivation in adolescent students enrolled in required courses (E. Ferrer-Caja & M. R. Weiss, 2000) with an independent sample of students taking elective courses. Female and male high school students (N = 219) completed measures of motivational climate, teaching style, perceived competence, self-determination, goal orientation, and intrinsic motivation. Motivated behavior was assessed by teachers who rated the students on effort and persistence in class activities. First, the authors used structural equation modeling to examine model invariance between the original and the new samples, which yielded a lack of equivalence. Next, the authors examined several alternative theory-based models using the elective sample. The results indicated that the data were best represented by a model that separated social-contextual factors, individual factors, intrinsic motivation, and motivated behaviors. The strongest predictors of intrinsic motivation were task-goal orientation and perceived competence. These results are discussed from both theoretical and methodological perspectives. 相似文献
64.
Emilio Santa Rita Jr. 《Community College Journal of Research & Practice》2013,37(5):519-529
The study was an investigation of the usefulness of 50 variables in predicting the academic performance of 86 students readmitted to Bronx Community College following academic suspension. The variables included scores on the City University of New York placement tests, the Maudsley Personality Inventory, and the Survey of Study Habits and Attitudes. Other variables included 8 educational history items, 20 biographical items, and students' opinions about the contribution of 12 factors to their previous academic failure. The criterion measure was the academic performance (pass or fail) in the re‐entry semester. The principal conclusions to be derived from this study are that, for the population of academic failures characterized by average high school achievement and average scholastic aptitude, specific academic skills are important, past academic record seems unimportant, and a general factor called incentive seems important in the attainment of passing grades upon readmission. 相似文献
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Fernando Rodriguez Emilio Duran Juan P. Vargas Blas Torres Cosme Salas 《Learning & behavior》1994,22(4):409-420
Goldfish were trained to obtain food in a four-arm maze placed in a room with relevant spatial cues. Four experimental conditions were run: allocentric, egocentric, egocentric + allocentric, and control. Relative to controls, all groups were able to solve the different tasks with high accuracy after 1 week of training. Subsequent transfer tests revealed place and response strategies for allocentric and egocentric groups, respectively, and both types of strategies for the ego-allocentric group. Moreover, the allocentric group showed the capacity to choose the appropriate trajectory toward the goal, even from novel starting points, presumably by using the distal cues as a whole. The results suggest that, in addition to using egocentric strategies, goldfish are able to solve spatial tasks on the basis of allocentric frames of reference and to build complex spatial cognitive representations of their environment. 相似文献
66.
This paper provides a systematic review of the literature on knowledge management (KM) in small and medium enterprises (SMEs) and SME networks. The main objective is to highlight the state-of-the-art of KM from the management point of view in order to identify relevant research gaps. The review highlights that in recent years the trend of papers on the topic is growing and involves a variety of approaches, methodologies and models from different research areas. The vast majority of papers analysed focus on the topic of KM in the SME while there are only few papers analysing KM in networks populated by SMEs. The content analysis of the papers highlights six areas of investigation from which were derived ten research questions concerning three perspectives: the factors affecting KM; the impact of KM on firm’s performance; the knowledge management systems. 相似文献
67.
The contribution of knowledge about anaphors,organisational signals and refutations to reading comprehension 
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下载免费PDF全文 Expository texts contain rhetorical devices that help readers to connect text ideas (within a text and with prior knowledge) and to monitor reading. Rhetorical competence addresses readers' skill in detecting, understanding and using these devices. We examined the contribution of rhetorical competence to reading comprehension on two groups of 11‐ to 13‐year‐old students: low‐level (Study 1) and high‐level (Study 2) reading skills. The measures of rhetorical competence assessed students' knowledge about anaphors, organisational signals and refutations. In both studies, each measure of rhetorical competence contributed significantly to reading comprehension once prior knowledge, working memory and decoding skills were controlled for. This contribution was higher in Study 2. Furthermore, whereas in Study 1, each measure of rhetorical competence had a unique contribution to reading comprehension when controlling for the other measures of rhetorical competence, in Study 2, only the knowledge about organisational signals and refutations had this unique contribution. 相似文献
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Maria Salinas Maite López-Garrigós Emilio Flores Ana Santo-Quiles Mercedes Gutierrez Javier Lugo Rosa Lillo Carlos Leiva-Salinas 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2015,25(1):49-56
Introduction
Preanalytical control and monitoring continue to be an important issue for clinical laboratory professionals. The aim of the study was to evaluate a monitoring system of preanalytical errors regarding not suitable samples for analysis, based on different indicators; to compare such indicators in different phlebotomy centres; and finally to evaluate a single synthetic preanalytical indicator that may be included in the balanced scorecard management system (BSC).Materials and methods
We collected individual and global preanalytical errors in haematology, coagulation, chemistry, and urine samples analysis. We also analyzed a synthetic indicator that represents the sum of all types of preanalytical errors, expressed in a sigma level. We studied the evolution of those indicators over time and compared indicator results by way of the comparison of proportions and Chi-square.Results
There was a decrease in the number of errors along the years (P < 0.001). This pattern was confirmed in primary care patients, inpatients and outpatients. In blood samples, fewer errors occurred in outpatients, followed by inpatients.Conclusion
We present a practical and effective methodology to monitor unsuitable sample preanalytical errors. The synthetic indicator results summarize overall preanalytical sample errors, and can be used as part of BSC management system.Key words: Preanalytical phase, errors in laboratory medicine, balanced scorecard, patient safety 相似文献69.
70.
ResumenEl presente artículo tiene como objetivo analizar los procesos de codificación y almacenamiento en tareas que implican el sistema de la MCP. Con este fin, hemos utilizado material verbal y hemos manipulado el grado de similitud táctil y fonética de los estímulos para estudiar su efecto en la retención a corto plazo. Los resultados de los dos experimentos indican, por un lado, que los ciegos se sirven de formatos de naturaleza diferente (táctil-fonémica) para mantener la información a corto plazo y, por otro lado, que incrementan su capacidad de almacenamiento con la edad. 相似文献