812 research outputs found

    The Effects of Generative Strategies in Instructional Simulations on Learning, Cognitive Load, and Calibration Accuracy

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    Instructional simulations can provide a powerful medium for learners to interact with a model representing underlying principles of content or phenomena. While a promising medium for developing a learner\u27s own mental model, reviews of simulation learning have revealed less than promising results (Bangert-Drowns, Kulik, & Kulik, 1985; Kulik & Kulik, 1991), perhaps due to the lack of instructional supports inherent with a discovery-based approach. This study examined the use of generative strategies as an instructional support to promote learning from a physics simulation. Generative strategies, originally proposed by Wittrock (1974, 1989), strengthen understanding by prompting learners to create meaning between new information and prior knowledge or experience. These strategies provide learners with the feedback necessary for reflection in relation to the self-regulatory process described by Zimmerman (2000). Last, engaging in these strategies may direct attention to germane resources necessary for schema construction as described by cognitive load theory (Sweller, Ayres, & Kalyuga, 2011). Results of this study indicated that principle learning was improved when undergraduate participants paraphrased or predicted and self-explained using a guided discovery approach. Calibration accuracy, by means of predicting anticipated test performance, was also improved for learners engaging in generative strategies as compared to a control group. Postdiction of test performance indicated a directional trend favoring participants who predicted and self-explained. Test performance was strongly correlated (r=.59) with the thoroughness of generative content between treatment groups and the quality of self-explanations indicated a marked relationship with test performance (r=.78). Generative strategies also led to significant differences in mental effort, assessments of performance, and levels of frustration between treatment groups. Specifically, participants who predicted and self-explained reported significantly higher levels of mental effort than the other two groups. These participants reported decreased levels of confidence than the paraphrase group and higher levels of frustration than the control group. Finally, the incorporation of generative strategies did not influence participants\u27 interest in the instructional content

    Comparison of Restricted and Traditional Discussion Boards on Student Critical Thinking

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    Interaction is a critical component of distance education and involves the transfer of information between the learner and content, learner and learner, or learner and instructor (Moore, 1989). Current distance education literature has examined the role of interaction, specifically learner-learner interaction, in learning and discussion design to enhance achievement. The purpose of this study was to compare the effects of restricted and traditional discussion boards on critical thinking and learning in a graduate-level online distance education course. Findings indicated improved critical thinking in the quality and preparation strategies of initial discussion board postings when participants\u27 views of peer responses to discussion board questions were restricted until a predetermined date. Although the overall quality of subsequent postings was not affected, content analysis revealed a significant increase in discourse and revised opinions in the restricted format

    Virtual World Problem-Centered Challenge Evaluation

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    This paper describes the two-year implementation evaluation of a problem-based engineering design challenge held in a virtual world. The team-based challenge was designed and facilitated by an aerospace research and education institute for middle and high school student competitors in both classrooms and afterschool programs across the U.S. An independent evaluation team examined participant experiences to consider the strengths of the challenge, as well as recommendations to enhance the effectiveness and efficiency of future challenges. Overall, the evaluation team found that the problem-centered design challenge offered the student competitors a unique and valuable opportunity to engage in real-life science and engineering problems with the support of advanced science, technology, and engineering resources and college-level and professional experts. Recommendations centered on needed adjustments to achieve and prepare for growth, support for teams, assessment refinement, and collaboration and other technology enhancement

    Introduction to This Special Issue: Faculty Intellectual Property in the Digital Age

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    (First paragraph) Prior to the third generation of distance education that is described as telelearning (Taylor 1995) or teleconferencing (Moore and Kearsley 1996), there were few questions about the ownership of a faculty member’s intellectual property. It was extremely rare for an institution to claim ownership of a professor’s class materials whether lecture notes, flip charts, overhead transparencies, audio and video recording, monographs, handouts or tests. With the advent of Internet-based distance education delivery systems including 2-way audio and video as well as online courses, the issue of intellectual property ownership has grown complex

    An analysis of the dependence of saccadic latency on target position and target characteristics in human subjects

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    BACKGROUND: Predictions from conduction velocity data for primate retinal ganglion cell axons indicate that the conduction time to the lateral geniculate nucleus for stimulation of peripheral retina should be no longer than for stimulation of central retina. On this basis, the latency of saccadic eye movements should not increase for more peripherally located targets. However, previous studies have reported relatively very large increases, which has the implication of a very considerable increase in central processing time for the saccade-generating system. RESULTS: In order to resolve this paradox, we have undertaken an extended series of experiments in which saccadic eye movements were recorded by electro-oculography in response to targets presented in the horizontal meridian in normal young subjects. For stationary or moving targets of either normal beam intensity or reduced red intensity, with the direction of gaze either straight ahead with respect to the head or directed eccentrically, the saccadic latency was shown to remain invariant with respect to a wide range of target angular displacements. CONCLUSIONS: These results indicate that, irrespective of the angular displacement of the target, the direction of gaze or the target intensity, the saccade-generating system operates with a constant generation time

    Response to comment on "Human-specific gain of function in a developmental enhancer"

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    Duret and Galtier argue that human-specific sequence divergence and gain of function in the HACNS1 enhancer result from deleterious biased gene conversion (BGC) with no contribution from positive selection. We reinforce our previous conclusion by analyzing hypothesized BGC events genomewide and assessing the effect of recombination rates on human-accelerated conserved noncoding sequence ascertainment. We also provide evidence that AT → GC substitution bias can coexist with positive selection

    Expanding Paramedicine in the Community (EPIC): study protocol for a randomized controlled trial.

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    BackgroundThe incidence of chronic diseases, including diabetes mellitus (DM), heart failure (HF) and chronic obstructive pulmonary disease (COPD) is on the rise. The existing health care system must evolve to meet the growing needs of patients with these chronic diseases and reduce the strain on both acute care and hospital-based health care resources. Paramedics are an allied health care resource consisting of highly-trained practitioners who are comfortable working independently and in collaboration with other resources in the out-of-hospital setting. Expanding the paramedic's scope of practice to include community-based care may decrease the utilization of acute care and hospital-based health care resources by patients with chronic disease.Methods/designThis will be a pragmatic, randomized controlled trial comparing a community paramedic intervention to standard of care for patients with one of three chronic diseases. The objective of the trial is to determine whether community paramedics conducting regular home visits, including health assessments and evidence-based treatments, in partnership with primary care physicians and other community based resources, will decrease the rate of hospitalization and emergency department use for patients with DM, HF and COPD. The primary outcome measure will be the rate of hospitalization at one year. Secondary outcomes will include measures of health system utilization, overall health status, and cost-effectiveness of the intervention over the same time period. Outcome measures will be assessed using both Poisson regression and negative binomial regression analyses to assess the primary outcome.DiscussionThe results of this study will be used to inform decisions around the implementation of community paramedic programs. If successful in preventing hospitalizations, it has the ability to be scaled up to other regions, both nationally and internationally. The methods described in this paper will serve as a basis for future work related to this study.Trial registrationClinicalTrials.gov: NCT02034045. Date: 9 January 2014

    The Impact of the COVID-19 Pandemic on School Psychology Internship Outcomes

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    The Ohio Internship Program in School Psychology was forced to adapt abruptly to the changing circumstances brought on by the novel coronavirus (COVID-19) pandemic beginning in March 2020. The purpose of this study was to determine the extent to which the school psychology internship outcomes were negatively affected by the COVID-19 pandemic in terms of supervisors\u27 ratings of intern competencies, the number of students served by interns, and the outcomes of academic and behavior interventions supported by interns. Findings of the annual evaluation of the Ohio Internship Program in School Psychology for the school year directly affected by the pandemic (2020–2021) were compared to the findings for the year the pandemic began (2019–2020) and the 3 years before the start of the pandemic. The results provide evidence of gains in professional competencies and positive outcomes for students served by interns. The results also highlight racial disparities in the counts of students provided school psychological services during the pandemic. Implications for school psychology graduate preparation and practice are discussed

    Experiences of learning through collaborative evaluation from a masters programme in professional education

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    This paper presents findings from a collaborative evaluation project within a masters programme in professional education. The project aimed to increase knowledge of research methodologies and methods through authentic learning where participants worked in partnership with the tutor to evaluate the module which they were studying. The project processes, areas of the course evaluated and the data collection methods are outlined. The findings focus on key themes from evaluating the effectiveness of using a collaborative evaluation approach, including: enhanced student engagement; creativity of the collaborative evaluation approach; equality between the tutor and students; and enhanced research skills. Discussion focuses on the outcomes and effectiveness of the project and tutor reflections on adopting a collaborative approach. This paper highlights lessons from the project relevant to those interested in staff-student partnership approaches and those facilitating postgraduate learning and teaching programmes and educational research courses
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