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1.
教学视频因其多通道展现教学内容的特性而成为数字化学习资源的首选形态。线索作为教学视频中的重要引导性教学设计手段,探究其类型及学习者先前知识经验对学习效果的交互影响,有益于优化教学视频的设计策略。基于学习者先前知识经验水平(高水平和低水平)和线索类型(言语线索和视觉线索)两个维度,运用眼动追踪技术和认知负荷、学习满意度、学习效果等测量工具,通过实验考察二者对学习的影响及其内在机制后发现:学习者先前知识经验水平对认知负荷的影响显著;线索类型对学习满意度的影响显著,且线索类型与学习者先前知识经验水平在学习满意度上的交互效应显著;学习者先前知识经验水平对学习效果的影响显著,且线索类型与学习者先前知识经验水平在迁移测验成绩上的交互效应显著。实验结果表明,线索类型与学习者先前知识经验水平对学习满意度和学习效果存在明显的交互作用,即只有低知识经验水平学习者在学习含有视觉线索的教学视频后,学习满意度与学习效果才有显著提升。这可能是由于该类学习者在信息选择时存在困难,视觉线索可以帮助其提高信息搜索效率,而言语线索却会使其认知负荷超载。  相似文献   

2.
Cognitive load theory is intended to provide instructional strategies derived from experimental, cognitive load effects. Each effect is based on our knowledge of human cognitive architecture, primarily the limited capacity and duration of a human working memory. These limitations are ameliorated by changes in long-term memory associated with learning. Initially, cognitive load theory's view of human cognitive architecture was assumed to apply to all categories of information. Based on Geary’s (Educational Psychologist 43, 179–195 2008; 2011) evolutionary account of educational psychology, this interpretation of human cognitive architecture requires amendment. Working memory limitations may be critical only when acquiring novel information based on culturally important knowledge that we have not specifically evolved to acquire. Cultural knowledge is known as biologically secondary information. Working memory limitations may have reduced significance when acquiring novel information that the human brain specifically has evolved to process, known as biologically primary information. If biologically primary information is less affected by working memory limitations than biologically secondary information, it may be advantageous to use primary information to assist in the acquisition of secondary information. In this article, we suggest that several cognitive load effects rely on biologically primary knowledge being used to facilitate the acquisition of biologically secondary knowledge. We indicate how incorporating an evolutionary view of human cognitive architecture can provide cognitive load researchers with novel perspectives of their findings and discuss some of the practical implications of this view.  相似文献   

3.
The purpose of this study has been to examine the impacts of aesthetic design on learner experience in an e-assessment environment, specifically on cognitive load and task performance. Sixty-six postsecondary students were randomly assigned to one of two aesthetic design configurations of the e-assessment environment: (1) an environment with low consideration to aesthetic design (i.e., designed to provide the utility and usability necessary to complete the tasks), and (2) the same environment (i.e., identical utility, task objectives, and task media) designed with several aesthetic enhancements to heighten the learner experience. Findings suggest that aesthetic design significantly decreased participant cognitive load and increased participant satisfaction, willingness to continue use, voluntary self-assessment time, and task performance. Qualitative data support these findings. The results of this study provide practical insights for designers exploring the valuable relationship between aesthetic design and the learner experience.  相似文献   

4.
移动计算技术与各类信息终端的进步,极大促进了基于“互联网+”的移动学习平台的发展。当前,纷繁的在线学习平台面临着用户不易接受、满意度和使用率低等诸多问题。基于信息系统技术接受和使用统一整合理论(UTUAT),结合移动情境和心流体验理论,针对当前用户群较为广泛的英语在线学习平台,通过问卷调查数据,对用户在线学习的情境和技术接受感知行为进行深入研究,构建了移动学习平台的用户使用行为模型。数据分析显示,心流体验、感知移动性和服务质量对学习用户的持续使用意愿均有显著影响,在线学习的内容质量通过心流体验对用户行为产生间接影响;感知成本因素方面,付费的移动学习平台对用户行为的影响比免费平台相对显著,但均未通过显著性检验。上述研究方法和结论,对各类移动学习平台的用户行为研究具有一定的参考价值。  相似文献   

5.
Depletion of limited working memory resources may occur following extensive mental effort resulting in decreased performance compared to conditions requiring less extensive mental effort. This “depletion effect” can be incorporated into cognitive load theory that is concerned with using the properties of human cognitive architecture, especially working memory, when designing instruction. Two experiments were carried out on the spacing effect that occurs when learning that is spaced by temporal gaps between learning episodes is superior to identical, massed learning with no gaps between learning episodes. Using primary school students learning mathematics, it was found that students obtained lower scores on a working memory capacity test (Experiments 1 and 2) and higher ratings of cognitive load (Experiment 2) after massed than after spaced practice. The reduction in working memory capacity may be attributed to working memory resource depletion following the relatively prolonged mental effort associated with massed compared to spaced practice. An expansion of cognitive load theory to incorporate working memory resource depletion along with instructional design implications, including the spacing effect, is discussed.  相似文献   

6.
Against the background of an adaptation of Cognitive Load Theory to learner-controlled settings we investigated the impact of learner characteristics on information utilization strategies, cognitive load, and learning outcomes in a hypermedia environment. Based on the data of 79 students, five clusters of students were identified according to their learner characteristics by means of a cluster analysis. Further analyses showed that learners with more favorable characteristics (i.e., higher prior knowledge, more complex epistemological beliefs, more positive attitudes towards mathematics, better cognitive and metacognitive strategy use) tended to show a more adaptive example utilization behavior, reported less cognitive load, and solved more problems correctly than learners with less favorable characteristics.  相似文献   

7.
In this study the relationship between domain-specific skills and peer assessment skills as a function of task complexity is investigated. We hypothesised that peer assessment skills were superposed on domain-specific skills and will therefore suffer more when higher cognitive load is induced by increased task complexity. In a mixed factorial design with the between-subjects factor task complexity (simple, n?=?51; complex, n?=?59) and within-subjects factor task type (domain-specific, peer assessment), secondary school students studied four integrated study tasks, requiring them to learn a domain-specific skill (i.e. identifying the six steps of scientific research) and to learn how to assess a fictitious peer performing the same skill. Additionally, the students performed two domain-specific test tasks and two peer assessment test tasks. The interaction effect found on test performance supports our hypothesis. Implications for the teaching and learning of peer assessment skills are discussed.  相似文献   

8.
This study assessed the role different kinds of secondary tasks play for researching the modality effect of cognitive load theory. Ninety-six university students worked with a computer-based training program for approximately 13?min and had to fulfill an additional secondary task. In a 2?×?2 factorial design, modality of information presentation (within factor) and design of secondary task (between factor) were varied. Students of both experimental groups learned with visual-only and audiovisual information presentation. The secondary task consisted of monitoring an object either displayed spatially contiguous (monitoring the screen background color, N?=?46) or spatially non-contiguous (monitoring a letter color in the upper part of the screen, N?=?50). Reaction times on this secondary task were used to measure cognitive load. Results show that the modality effect only appears with the spatially non-contiguous task but not with the spatially contiguous task. We interpret this effect as due to only partial utilization of working memory capacity by the combination of primary task and spatially contiguous secondary task. The results highlight the importance of an appropriate secondary task design when investigating the modality effect but also not to overgeneralize multimedia design guidelines.  相似文献   

9.
The purpose of this study was to examine the effects of a metaphorical interface on germane cognitive load in Web-based instruction. Based on cognitive load theory, germane cognitive load is a cognitive investment for schema construction and automation. A new instrument developed in a previous study was used to measure students?? mental activities of schema construction and automation supported by structural cues in a metaphorical interface environment. Eighty participants were randomly assigned to one of two types of instructional units with the same instructional content and different interface types (i.e., non-metaphorical interface and metaphorical interface). The results indicated that germane cognitive load positively affected learning performance while there was no relationship between germane cognitive load and students?? prior knowledge. A metaphorical interface enhanced learners?? germane cognitive load and learning performance, and both germane cognitive load and prior knowledge similarly contributed to learning performance. The findings provide implications for the advancement of cognitive load theory and the practice of instructional development.  相似文献   

10.
Using cognitive load theory and cognitivetheory of multimedia learning as a framework,we conducted two within-subject experimentswith 10 participants each in order toinvestigate (1) if the audiovisual presentationof verbal and pictorial learning materialswould lead to a higher demand on phonologicalcognitive capacities than the visual-onlypresentation of the same material, and (2) ifadding seductive background music to anaudiovisual information presentation wouldincrease the phonological cognitive load. Weemployed the dual-task methodology in order toachieve a direct measurement of cognitive loadin the phonological system. In bothexperiments, the modality effect could beconfirmed in the patterns of secondary taskperformance and in the primary learning task.  相似文献   

11.
Online educational technologies and e‐learning tools are providing new opportunities for students to learn worldwide, and they continue to play an important role in anatomical sciences education. Yet, as we shift to teaching online, particularly within the anatomical sciences, it has become apparent that e‐learning tool success is based on more than just user satisfaction and preliminary learning outcomes—rather it is a multidimensional construct that should be addressed from an integrated perspective. The efficiency, effectiveness and satisfaction with which a user can navigate an e‐learning tool is known as usability, and represents a construct which we propose can be used to quantitatively evaluate e‐learning tool success. To assess the usability of an e‐learning tool, usability testing should be employed during the design and development phases (i.e., prior to its release to users) as well as during its delivery (i.e., following its release to users). However, both the commercial educational software industry and individual academic developers in the anatomical sciences have overlooked the added value of additional usability testing. Reducing learner frustration and anxiety during e‐learning tool use is essential in ensuring e‐learning tool success, and will require a commitment on the part of the developers to engage in usability testing during all stages of an e‐learning tool's life cycle. Anat Sci Educ 10: 190–199. © 2016 American Association of Anatomists.  相似文献   

12.
In the anatomical sciences, e‐learning tools have become a critical component of teaching anatomy when physical space and cadaveric resources are limited. However, studies that use empirical evidence to compare their efficacy to visual‐kinesthetic learning modalities are scarce. The study examined how a visual‐kinesthetic experience, involving a physical skeleton, impacts learning when compared with virtual manipulation of a simple two‐dimensional (2D) e‐learning tool, A.D.A.M. Interactive Anatomy. Students from The University of Western Ontario, Canada (n = 77) participated in a dual‐task study to: (1) investigate if a dual‐task paradigm is an effective tool for measuring cognitive load across these different learning modalities; and (2) to assess the impact of knowledge recall and spatial ability when using them. Students were assessed using knowledge scores, Stroop task reaction times, and mental rotation test scores. Results demonstrated that the dual‐task paradigm was not an effective tool for measuring cognitive load across different learning modalities with respect to kinesthetic learning. However, our study highlighted that handing physical specimens yielded major, positive impacts on performance that a simple commercial e‐learning tool failed to deliver (P < 0.001). Furthermore, students with low spatial ability were significantly disadvantaged when they studied the bony joint and were tested on contralateral images (P = 0.046, R = 0.326). This suggests that, despite limbs being mirror images, students should be taught the anatomy of, as well as procedures on, both sides of the human body, enhancing the ability of all students, regardless of spatial ability, to take anatomical knowledge into the clinic and perform successfully. Anat Sci Educ 10: 570–588. © 2017 American Association of Anatomists.  相似文献   

13.
Course Management Systems (CMSs) in higher education have emerged as one of the most widely adopted e‐learning platforms. This study examines the success of e‐learning CMSs based on user satisfaction and benefits. Using DeLone and McLean's information system success model as a theoretical framework, we analyze the success of e‐learning CMSs in five dimensions: system quality, information quality, instructional quality, user satisfaction, and CMS benefits. An analysis of survey data collected from students participating in a university‐wide CMS shows that system quality, information quality, and instructional quality positively influence user satisfaction, which, in turn, increases the benefits of CMSs. By providing a comprehensive framework for the critical success factors in e‐learning CMSs and their causal relationships, this study provides practical implications for managing e‐learning courses and resources for a more flexible and effective CMS‐centered, e‐learning environment.  相似文献   

14.
This empirical study used Keller’s (Technol Instr Cogn Learn 16:79–104, 2008b) motivation, volition, and performance (MVP) theory to develop and statistically evaluate a mathematical MVP model that can serve as a research and policy tool for evaluating students’ learning experiences in digital environments. Specifically, it explored undergraduate biology students’ learning and attitudes toward e-texts using a MVP mathematical model in two different e-text environments. A data set (N = 1334) that included student motivation and e-text information processing, frustration with using e-texts, and student ability variables was used to evaluate e-text satisfaction. A regression analysis of these variables revealed a significant model that explained 77% of the variation in student e-text satisfaction in both e-text learning environments. Student motivation and intrinsic cognitive load were positive predictors of student satisfaction, while extraneous cognitive load and student prior knowledge and background variables were negative predictors. Practical implications for e-text learning and generalizability of a mathematical MVP model are discussed.  相似文献   

15.
A 2 (learning strategies: diagram vs. summary) × 2 (levels of expertise: low vs. high) experiment was conducted to compare the effectiveness of using diagrams to writing summaries for students given biological information to learn and who possessed different levels of expertise in that topic area. A main effect of learning strategy used on number of idea units encoded (in diagrams or summaries) was found: drawing diagrams was superior to writing summaries. However, no interaction effect between learning strategies and expertise was found. An examination of students’ subjective ratings of cognitive load revealed that those with low expertise reported higher levels of cognitive load when constructing diagrams. These findings suggest that using diagrams is effective for identifying and encoding important information when learning, but that it would be helpful to provide guidance about diagram use particularly to students who are novices in the topic area to reduce cognitive load.  相似文献   

16.
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17.
Using Luhmann’s communication theory and affordance theories, we develop a framework to examine how kindergarten-grade 2 students interact with tablet computers. We assessed whether cognitive ability and device configuration influence how successfully children use tablet computers. We found that children’s limited ability to direct their cognitive resources affects child–tablet communication (i.e., sending and receiving information to and from the device). While it may appear that children simply know how to use this technology, they are actually engaged in a systematic assessment of the device governed by their level of attentional maturity. Interestingly, tablet computers designed for adults result in a higher frequency of successful communication but prolonged communication was most likely to take place on child-focused tablet computers. It seems that communication success and user engagement are independent.  相似文献   

18.
The use of a second screen can enhance information processing and the execution of search tasks within a given period. In this study, we examined the learner's attentional shift (AS) between two screens and controlled secondary tasks (STs) in the media multitasking setting and its effect on the learning process. In particular, we analyzed how cognitive and emotional learning effects can be explored depending on the role of this setting. A between-subject experiment was conducted with 69 participants (simultaneous vs. sequential use of a second screen in terms of open versus closed STs). The findings showed that there was a greater difference in emotional learning effects than in cognitive learning effects for participants who used a second screen. In terms of estimated emotional learning effects of media multitasking, participants engaged in sequential use demonstrated lower anxiety levels and higher competence beliefs during learning compared to participants who were engaged in simultaneous use. Moreover, an interaction effect occurred in the AS between the two screens and in controlled STs of recognition memory. These results indicate that attentional change and controlled STs are key predictors of learning effects in the media multitasking environment.  相似文献   

19.
Explicitly informing students about learning goals has been argued to foster intentional learning. This study tested three theoretical hypotheses regarding the facilitating effects of learning goals by investigating 72 students’ actual reading behaviour and cognitive processes (i.e., the use of learning goals). Participants studied a text presented on 15 separate computer screens with/without learning goals. In line with the three hypotheses, the analyses focused on three aspects: students’ interpretations of the learning goals, information selection processes and monitoring behaviour. Results indicated variability among students in their perceptions of the learning goals in terms of goal consistency and specificity. Students in the learning goal condition recorded more goal-relevant information in their notes. However, only few students deliberately used learning goals to monitor their goal-directed activities while studying the text. Analysis of students’ reading behaviour and cognitive processes suggests that the absence of significant performance differences between the conditions can be explained by referring to students’ actual use of learning goals.  相似文献   

20.
Discrepant claims have been advanced regarding the impact of communication load on information processing. Recent research and theory suggest that an increase in speed results in decreased response accuracy during comprehensive listening. However, despite indicated relationships between cognitive and affective learning, few investigators have explored the impact of communication load on affective responses. In the present study, the impact of communication load on affect, state anxiety, and several types of information processing performance is demonstrated. Moreover, a significant relationship was found between task‐directed affect and three modes of processing. Practical and theoretical implications of these findings are discussed.  相似文献   

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