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Metacognitive Skills Training in a Game-based Environment
No full textMetacognition has been shown to play a major role throughout the process of learning, influencing the learner’s effectiveness and efficiency. While cognitive strategies allow learners to build their knowledge, metacognitive knowledge and skills allow learners to monitor and improve their own progress, thereby increasing their effectiveness as learners and the positive impacts of the training itself. Recently, researchers have begun to explore methods for integrating metacognitive instruction into game-based learning environments. One such method, metacognitive prompting, involves delivering messages to trainees, sometimes in the form of a query, designed to elicit metacognitive processes in trainees during task performance and learning. Researchers have put forth general design guidelines for implementing metacognitive instruction and for specific interventions such as metacognitive prompting; however, this guidance is based on a limited set of stand-alone studies with case-by-case findings largely from academic domains rather than a series of systematic comparisons, replicated across several contexts and domains. Thus, further research is needed to address these limitations to derive empirically supported, intervention-specific guidance for the metacognitive instructional interventions in game-based learning environments. This dissertation investigated the efficacy of automated metacognitive skills training for promoting self-regulated learning and accelerating expertise development within a game-based learning environment. More specifically, this research examined the effectiveness of automatically delivered metacognitive prompts embedded within the gameplay of a volleyball training mobile application called VolleySim. To assess the potential impacts on learning behavior and training outcomes of prompt response formats and features, participants were randomly assigned to one of six experimental prompted conditions or to a control condition without prompts. In general, prompts that required a multiple-choice response led to more metacognitive activity such as participants spending more time responding or evaluating their own performance while prompts that required participants to simply acknowledge them led to better task performance. The inclusion of an embodied pedagogical agent as a prompt design feature was not shown to have an impact on task performance; however, it did have a modest impact on metacognitive activity such as participants spending more time evaluating their own performance. Overall, the results of this study provided evidence that metacognitive prompting positively impacts self-regulated learning behaviors and outcomes, even outside of traditional contexts and applications. It also laid the foundation for future research aimed at systematically evaluating specific metacognitive prompt design features and characteristics to derive effective design principles for metacognitive instruction in game-based learning environments.Cognitive psychologygaming, metacognition, mobile applications, prompting, self-regulated learning, trainingPsychologyDegree Awarded: Ph.D. Psychology. The Catholic University of Americ
View of Hong Kong Carryout
No full textView of the blue and green Hong Kong Carryout storefront. A red ATM machine sits in front of the left side of the building. One sign is taped on the window, and another sign is taped on the door
View from the bottom of an empty Metro stations escalator
No full textA view from below of three empty escalators
User-generated nationalism: interactions with religion, race, and partisanship in everyday talk online
No full textThis article examines how the nationalist imagination structures cyberspace from the bottom up, or what I call user-generated nationalism. It also looks at the interplay between nationalism and other, non-spatial modes of social identification. My analysis of a month of tweets indicates that religious, racialized, and partisan identities are quite pronounced online, but they also tend to be conflated with nationalism. I argue that nationalism is not simply banal itself: because of its fixity in place and political correctness, it is used to lend legitimacy to and ‘banalize’ other identities. This dynamic is key to understanding the explosion of right-wing populism around the ‘world of nations’–especially the success of populist leaders in normalizing religious, racialized, and partisan identifications–and the central role being played by digital media in this process
COVID-19 drive-thru testing sign
No full textCOVID-19 drive-thru testing sign for directing traffic posted to a tree on the George Washington University campus. The sign is located outside of Ric and Dawn Duques Hall and includes an arrow pointing to the right and also reads 'By appointment only'
Hippocampal-dependent appetitive control is impaired by experimental exposure to a Western-style diet
No full textRoyal Society Open Science, Volume 7, Issue 2, 1 February 2020, Article number 191338.Animals fed a Western-style diet (WS-diet) demonstrate rapid impairments in hippocampal function and poorer appetitive control. We examined if this also occurs in humans. One-hundred and ten healthy lean adults were randomized to either a one-week WS-diet intervention or a habitual-diet control group. Measures of hippocampal-dependent learning and memory (HDLM) and of appetitive control were obtained pre- and post-intervention. HDLM was retested at three-week follow-up. Relative to controls, HDLM performance declined in the WS-diet group (d = 0.43), but was not different at followup. Appetitive control also declined in the WS-diet group (d = 0.47) and this was strongly correlated with HDLM decline (d = 1.01). These findings demonstrate that a WS-diet can rapidly impair appetitive control in humans-an effect that could promote overeating in consumers of a WS-diet. The study also suggests a functional role for the hippocampus in appetitive control and provides new evidence for the adverse neurocognitive effects of a WS-diet
A New Opinion Review Methodology for Arabic Twitter Sentiment Analysis
No full textEach day, a tremendous number of opinions are posted about different issues and different subjects from massive active users on social media. While people increasingly use social media applications such as Twitter to express their feelings and opinions about many things such as events, movies, services and products; this data may also be used as a more valuable resource for governments, companies and decision-makers informing their decisions. This research proposed to use a machine learning approach and Lexicon approach to extract opinions of groups of people from Arabic tweets.In this research I used an entertainment event, as a case study. This research focuses on assessing peoples' opinions more accurately by leveraging the Retweet and Favorite, providing a similar effect as the tweet itself, as well as removing tweets unrelated to the subject opinion, such as: news, advertisements and spam.This research redounds to extend current knowledge of social media analysis and machine learning in the field of opinion analysis. This provides a methodology for selecting effective sentiment analysis mechanisms for Arabic tweets; in particular, accurate results using the developed machine learning algorithm.Computer scienceArtificial intelligenceArabic Language processing, Artificial intelligence, Computing methodologies, Data Mining, Natural language processing, NLPElectrical Engineering and Computer ScienceDegree Awarded: M.S.C.S. Electrical Engineering and Computer Science. The Catholic University of Americ
View of the entrance to Toki Underground on H Street NE
No full textTo the left is a view of the door leading up to the restaurant Toki Underground. On the door are four signs listing instructions for curbside pickup, temporary hours, contact phone number, and barring entry to anyone besides employees. Also visible to the right is the storefront window to the bar The Pug, covered in stickers
So many trolleys, so little life: on boonin, foot, and the permissibility of abortion
No full textby Amber Rose Bennett.Typescript.Thesis (M.A.--Philosophy)--Catholic University of America, 2020.Bibliography: leaves 59-61.Also available in microfilm.Also available in microfiche
'Wash Yo Hands' chalked at the steps of The Car Barn Condominiums
No full textWASH YO HANDS' is written in chalk at the bottom of two steps of a narrow walkway at The Car Barn Condominiums