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101.
随着网络教学和视频学习的普及, 近期大量研究关注视频学习过程中教师角色的作用。真人教师对学习的作用存在不同的理论解释:准社会交往理论、社会存在理论和社会代理理论支持真人教师能够促进学习; 而多媒体学习认知理论、认知负荷理论等则认为教师的存在会阻碍视频学习。汇总以往实证研究发现:第一, 教师对视频学习效果有比较弱的促进效应, 这主要体现在保持测验(d = 0.23)和迁移测验(d = 0.1)中; 第二, 教师对视频学习主观体验的影响主要体现在学习感知(d = 0.49), 学习兴趣(d = 0.5)和学习满意度(d = 2.21)上, 显示中等及大的效应; 第三, 教师的存在会降低学习者对视频学习材料的注视时间(d = -2.02)。未来研究仍需要从真人教师呈现方式、学习者特征、学习材料特征以及测量方式等方面加以探讨。 相似文献
102.
双加工理论认为熟悉性和回想是情景记忆的两个独立过程,其重要证据是ERP研究中FN400和LPC可以分别指示熟悉性和回想。但也有研究证明FN400是概念启动和熟悉性共同作用的结果,而LPC也不能准确的反映回想加工,因此,将其作为双加工理论证据的可靠性需进一步讨论。未来需进一步明确概念启动和熟悉性影响FN400的前提条件,并在提高生态效度和控制额外变量的同时明晰LPC的指向性,同时探究熟悉性和回想在再认过程中的具体作用方式。 相似文献
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This article examines the life stories of two young Polish women who have faced severe marginalization and homelessness. The main aim of this article is to investigate how the notions of (in)visibility and (im)mobility are shaping participants' everyday lives and life stories they tell. Using concepts drawn from social sciences, as well as cultural and literary studies, this article attempts to reconstruct the narrative frameworks of their life stories. Marzena's story is a non-linear collection of adventures reminiscent of a picaresque novel, but with fractured agency, which leaves her powerless and restlessly moving around the city. Angelika, on the other hand, is trapped in a two-room dilapidated house with no running water, located in a rural part of Poland. Her narrative resembles a telenovela with melodramatic plot twists, romance and hard-to-believe revelations about the narrator's true self; further, it is a purposeful journey in search for happiness and fortune. Surprisingly, Marzena's mobility makes it unlikely for her to overcome homelessness, while the stranded Angelika finds the resilience necessary to improve her life. The proposed analysis contributes to a deeper understanding of women's experiences of homelessness and demonstrates the need to regard housing exclusion also as a biographical process. 相似文献
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The interaction and engagement patterns of 13 supported employees and 38 regular Adult Training Centre (ATC) attenders were compared. Data were obtained through direct observation within 13 employment sites and a representative sample of ATC organised activities. Results indicated that individual involvement was significantly higher in employment, compared to ATCs, but that the ATC group experienced significantly more social interaction, mainly due to higher levels of task specific dialogue between individuals and the service staff within ATCs. A breakdown of with whom interactions occurred revealed that individuals in ATCs tended to interact more often with care staff than anyone else. Individuals tended to interact more often during work with their non-disabled co-workers and a substantial proportion of time was spent interacting with the public. These findings suggest that the supported employment option yields advantages for individuals in some key aspects of community integration, compared to ATCs. 相似文献
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This study used longitudinal survey data of Filipino American and Korean American youth to examine ways in which universal factors (e.g., peer antisocial behaviors and parent–child conflict) and Asian American (AA) family process variables (e.g., gendered norms) independently and collectively predict grade point average (GPA), externalizing, and internalizing problems. We aimed to explain the “Asian American youth paradox” in which low externalizing problems and high GPA coexist with high internalizing problems. We found that universal factors were extensively predictive of youth problems and remained robust when AA family process was accounted for. AA family process also independently explained youth development and, in part, the AA youth paradox. For example, gendered norms increased mental distress. Academic controls did the opposite of what it is intended, that is, had a negative impact on GPA as well as other developmental domains. Family obligation, assessed by family-centered activities and helping out, was beneficial to both externalizing and internalizing youth outcomes. Parental implicit affection, one of the distinct traits of AA parenting, was beneficial, particularly for GPA. This study provided important empirical evidence that can guide cross-cultural parenting and meaningfully inform intervention programs for AA youth. 相似文献
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Researchers have recently begun to evaluate video-based preference assessments; however, only two studies have evaluated the efficacy of this preference assessment modality in assessing preference for social interactions. Four individuals diagnosed with autism spectrum disorder who could not match pictures or graphic-interchange-format images (GIFs) of social interactions to in vivo interaction participated. We compared picture and GIF-based paired-stimulus preference assessments for social interaction and evaluated the preference assessment hierarchies by conducting a concurrent-operant reinforcer assessment including all social interactions. The GIF-based preference assessment produced similar hierarchies to the reinforcer assessment for all participants, whereas the picture-based preference assessments produced similar hierarchies to the reinforcer assessment for 2 of 4 subjects. Additionally, we conducted a modality preference assessment in which we evaluated participants' preference for viewing GIFs or pictures of social interactions, and found that 3 out of 4 subjects displayed a preference for GIFs. 相似文献