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Auflistung nach Autor:in "Graf, Linda"

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  • Konferenzbeitrag
    Development and Validation of a German Version of the Player Experience Inventory (PXI)
    (Mensch und Computer 2022 - Tagungsband, 2022) Graf, Linda; Altmeyer, Maximilian; Emmerich, Katharina; Herrlich, Marc; Krekhov, Andrey; Spiel, Katta
    The Player Experience Inventory (PXI), initially developed by Abeele et al. (2020), measures player experiences among English-speaking players. However, empirically validated translations of the PXI are sparse, limiting the use of the scale among non-English speaking players. In this paper, we address this issue by providing a translated version of the scale in German, the most widely spoken first language in the European Union. After translating the original items, we conducted a confirmatory factor analysis (N = 506) to validate the German version of the PXI. Our results confirmed a 10-factor model—which the original authors of the instrument suggested— and show that the German PXI has valid psychometric properties. While model fit, internal consistency and convergent validity were acceptable, there was room for improvement regarding discriminant validity. Based on our results, we advocate for the German PXI as a valid and reliable instrument for assessing player experiences in German-speaking samples.
  • Konferenzbeitrag
    Playing in virtual nature: improving mood of elderly people using VR technology
    (Mensch und Computer 2020 - Tagungsband, 2020) Graf, Linda; Liszio, Stefan; Masuch, Maic
    Age-related physical, mental, and social limitations can severely reduce the quality of life of elderly people. Research has shown that virtual reality (VR) can provide stimulating experiences, elicit positive emotions, and provoke relaxation. In this paper, we present an approach that integrates cognitive stimulating tasks, playful elements and virtual natural environments in one VR app tailored for elderly people. We developed a virtual walk in the forest where the players can solve cognitive tasks in two mini-games. To support a feeling of social presence and to reduce loneliness, we integrated a virtual dog as a companion who accompanies the players. We conducted an evaluation with 14 participants aged 66 to 84 years. The results show a change of positive and negative affect scores after using the VR experience. That supports our assumption, even though the differences were not significant. The participants enjoyed the VR app and were especially impressed by the experience of presence. Despite their inexperience in using VR technology, the participants behaved naturally and were interested in using the technology again. Our results support the assumption that elderly people can benefit from VR games in their everyday lives.