Rack, Oliver

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Rack
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Oliver
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Rack, Oliver

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2016 - 201932020 - 20249
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Autor:in: Zahn, Carmen × Hochschule: Hochschule für Angewandte Psychologie ×

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Gerade angezeigt 1 - 10 von 14
  • Vorschaubild
    Publikation
    Beyond words: investigating non-verbal indicators of collaborative engagement in a virtual synchronous CSCL environment
    (Frontiers Research Foundation, 14.08.2024) Jeitziner, Loris Tizian; Paneth, Lisa; Rack, Oliver; Zahn, Carmen [in: Frontiers in Psychology]
    In the future of higher education, student learning will become more virtual and group-oriented, and this new reality of academic learning comes with challenges. Positive social interactions in virtual synchronous student learning groups are not self-evident but need extra support. To successfully support positive social interactions, the underlying group processes, such as collaborative group engagement, need to be understood in detail, and the important question arises: How can collaborative group engagement be assessed in virtual group learning settings? A promising methodological approach is the observation of students’ non-verbal behavior, for example, in videoconferences. In an exploratory field study, we observed the non-verbal behavior of psychology students in small virtual synchronous learning groups solving a complex problem via videoconferencing. The groups were videorecorded to analyze possible relations between their non-verbal behaviors and to rate the quality of collaborative group engagement
    01A - Beitrag in wissenschaftlicher Zeitschrift
  • Vorschaubild
    Publikation
    Zooming in: The role of nonverbal behavior in sensing the quality of collaborative group engagement
    (Springer, 16.05.2024) Paneth, Lisa; Jeitziner, Loris Tizian; Rack, Oliver; Opwis, Klaus; Zahn, Carmen [in: International Journal of Computer-Supported Collaborative Learning]
    01A - Beitrag in wissenschaftlicher Zeitschrift
  • Vorschaubild nicht verfügbar
    Publikation
    Predicting engagement in computer-supported collaborative learning groups using natural language processing
    (20.03.2024) Jeitziner, Loris Tizian; Paneth, Lisa; Rack, Oliver; Zahn, Carmen; Wulff, Dirk
    Collaborative group engagement is a key factor of success in learning groups. This work explores the development of an innovative natural language processing method for predicting collaborative group engagement. To this end, we identified linguistic markers based on an established observation-based scheme for rating collaborative group engagement, such as, semantic similarity to task instructions, verbal mimicry, sentiment, and use of jargon. We evaluated the predictive power of the linguistic markers on the data of an observational study in which 38 learning groups were instructed to perform a collaborative learning task. Overall, the data consisted of 2588 expert ratings on collaborative group engagement. We relied on machine learning to the predict collaborative group engagement ratings using informative subsets of linguistic markers. The results showed above-baseline predictive accuracy for all four dimensions of collaborative group engagement. Moreover, the analysis of feature importance points to quantity of utterances, responsiveness and uniformity of participation as the most important markers for collaborative group engagement. By harnessing natural language processing, this work extends traditional qualitative analysis and delivers nuanced quantitative metrics suitable for capturing the complexity and dynamics of contemporary Computer Supported Collaborative Learning (CSCL) environments. Thereby, it contributes to the evolving landscape of CSCL research and demonstrates the potential of novel analytic techniques to support and enrich qualitative analysis in multiple domains.
    06 - Präsentation
  • Vorschaubild nicht verfügbar
    Publikation
    06 - Präsentation
  • Vorschaubild
    Publikation
    A multi-method approach to capture quality of collaborative group engagement
    (International Society of the Learning Sciences, 2023) Paneth, Lisa; Jeitziner, Loris Tizian; Rack, Oliver; Zahn, Carmen; Damsa, Crina; Borge, Marcela; Koh, Elizabeth; Worsley, Marcelo [in: Proceedings of the 16th International Conference on Computer-Supported Collaborative Learning - CSCL 2023]
    Multi-method approaches are an emerging trend in CSCL research as they allow to paint a more comprehensive picture of complex group learning processes than using a single method. In this contribution, we combined measures from different data sources to capture the quality of collaborative group engagement (QCGE) in CSCL-groups: QCGE-self-assessments, QCGE-ratings of verbal group communication, and video recorded nonverbal group behaviors. Using different methods of analysis, we visualized, described, and analyzed the data and related the measures to each other. Here, we present results suggesting that measures from different data sources are interrelated: For instance, nonverbal behavior (like nodding the head) is related to high QCGE-ratings of verbal communications. Results are preliminary and show disparities, too. Yet, we conclude that the multi-method approach results in a more comprehensive understanding of QCGE. Feasibility and suitability of the multi-method approach are discussed and conclusions for future research are drawn.
    04B - Beitrag Konferenzschrift
  • Vorschaubild
    Publikation
    Exploring linguistic indicators of social collaborative group engagement
    (International Society of the Learning Sciences, 2023) Jeitziner, Loris Tizian; Paneth, Lisa; Rack, Oliver; Zahn, Carmen; Wulff, Dirk U.; Damşa, Crina; Borge, Marcela; Koh, Elizabeth; Worsley, Marcelo [in: Proceedings of the 16th International Conference on Computer-Supported Collaborative Learning - CSCL 2023]
    This study takes a NLP approach to measuring social engagement in CSCL-learning groups. Specifically, we develop linguistic markers to capture aspects of social engagement, namely sentiment, responsiveness and uniformity of participation and compare them to human ratings of social engagement. We observed small to moderate links between NLP-markers and human ratings that varied in size and direction across the different groups. We discuss measurement and prediction of social collaborative group engagement using natural language processing.
    04B - Beitrag Konferenzschrift
  • Vorschaubild nicht verfügbar
    Publikation
    Poster Presentation of Project Examples in the Field of Artificial Intelligence
    (17.11.2022) Schwaninger, Adrian; Sterchi, Yanik; Wäfler, Toni; Renggli, Philipp; Rack, Oliver; Bleisch, Susanne; Paneth, Lisa; Jeitziner, Loris Tizian; Gasparik, Matus; Zahn, Carmen
    06 - Präsentation
  • Vorschaubild nicht verfügbar
    Publikation
    Exploring nonverbal behavior and collaborative group engagement in online learning groups
    (22.07.2022) Rack, Oliver; Paneth, Lisa; Jeitziner, Loris Tizian; Zahn, Carmen
    In an explorative field study, we investigated nonverbal behavior and collaborative group engagement (QCGE) in online learning groups. Participants in small groups performed a hidden profile task. Results suggests differences within and between groups in their nonverbal behavior. We expect that nonverbal behaviors relate to QCGE in online learning groups.
    06 - Präsentation
  • Vorschaubild
    Publikation
    Grundbausteine engagierter Zusammenarbeit in Lerngruppen
    (Springer, 2021) Zahn, Carmen; Rack, Oliver; Paneth, Lisa; Geramanis, Olaf; Hutmacher, Stefan; Walser, Lukas [in: Kooperation in der digitalen Arbeitswelt]
    Verlässliche Kooperation in Zeiten der Digitalisierung basiert auf Gruppenprozessen. In diesem Kapitel wird herausgearbeitet, wie eine hohe Qualität engagierter Zusammenarbeit in Gruppen auf verschiedenen Ebenen - sowohl kognitiv-aufgabenbezogen als auch interpersonell-emotional - beschrieben werden kann. Dabei geht es um die praxisrelevante Frage, wie digital unterstütztes Lernen etwa im Hochschulstudium bezüglich der Qualität des gemeinsamen Engagements in Studierendengruppen besser gefördert werden kann. Denn: eine verlässliche Kooperation in Zeiten der Digitalisierung muss gelernt werden. Hochschulen leisten einen bedeutenden Beitrag zur Realisierung verlässlicher Kooperation, wenn sie Studierende gezielt in kollaborativen Lehr- und Lernsituationen fördern und fordern, in denen Gruppenprozesse effektiv und effizient zu gestalten sind. Von besonderer Bedeutung ist es dabei, digital unterstützte Lehr-/Lernszenarien zu entwickeln, in denen Studierende Gelegenheit haben, mit digitalen Werkzeugen zu arbeiten, diese in der Gruppenarbeit anzuwenden und auszuprobieren, um damit komplexe Probleme zu lösen und Teamkompetenzen zu erwerben.
    04A - Beitrag Sammelband
  • Vorschaubild nicht verfügbar
    Publikation
    Do you see us?—Applied visual analytics for the investigation of group coordination
    (Springer, 18.03.2019) Rack, Oliver; Zahn, Carmen; Bleisch, Susanne [in: Gruppe. Interaktion. Organisation]
    01A - Beitrag in wissenschaftlicher Zeitschrift