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Big Buddy: Exploring Child Reactions and Parental Perceptions towards a Simulated Embodied Moderating System for Social Virtual Reality

Published: 19 June 2023 Publication History

Abstract

Children experience new forms of harassment in Social Virtual Reality (VR), often inaccessible to parental oversight. We aimed to understand how an artificial intelligent moderator safeguarding children from harassment in social VR is perceived by children and parents, by introducing “Big Buddy”, a Wizard-of-Oz embodied AI-moderator. 43 children (aged 8-16) played a tower-block-construction game in a simulated Social VR classroom where fictitious competitors disrupted their game and, in experimental conditions where present, Big Buddy intervened. We measured children’s perceptions after the disruptions, towards Big Buddy, and the moderation actions it took. Children felt significantly less sad and safer when Big Buddy suspended the saboteur. Parents (n=17) noted Big Buddy’s usefulness and felt reassured but would remain in the supervision loop. We present the first empirical research of a VR-embodied AI-moderator with children’s and parents’ perspectives, and propose design directions for embodied AI-moderators in Social VR.

Supplemental Material

MP4 File
- Video Figure
PDF File
- Appendix pdf - Combined Coding Scheme pdf
PDF File
- Appendix pdf - Combined Coding Scheme pdf

References

[1]
2022. AutoModerator. https://automoderator.app/bot/automoderator Last Accessed: 16-01-2023.
[2]
2022. Comfort and Safety — Rec Room. https://recroom.com/safety Last Accessed: 30-08-2022.
[3]
2022. UCL-VR/ubiq. https://github.com/UCL-VR/ubiq Last Accessed: 29-11-2022.
[4]
2022. User safety and moderation - AltspaceVR | Microsoft Docs. https://docs.microsoft.com/en-us/windows/mixed-reality/altspace-vr/user-safety Last Accessed: 30-08-2022.
[5]
2022. VRChat Safety and Trust System. https://docs.vrchat.com/docs/vrchat-safety-and-trust-system Last Accessed: 30-08-2022.
[6]
n.d. K-means Cluster Analysis · UC Business Analytics R Programming Guide. https://uc-r.github.io/kmeans_clustering Last Accessed: 08-01-2023.
[7]
Suzan Ali, Mounir Elgharabawy, Quentin Duchaussoy, Mohammad Mannan, and Amr Youssef. 2021. Parental Controls: Safer Internet Solutions or New Pitfalls?IEEE Security and Privacy (2021). https://doi.org/10.1109/MSEC.2021.3076150
[8]
Nasiru I Aliyu, Musbau D Abdulrahaman, Fatimah O Ajibade, and Tosho Abdurauf. 2020. Analysis of Cyber Bullying on Facebook Using Text Mining. 1 (2020), 1–12. https://doi.org/10.48185/jaai.v1i1.30
[9]
Kimberley R. Allison and Kay Bussey. 2017. Individual and collective moral influences on intervention in cyberbullying. Computers in Human Behavior 74 (9 2017), 7–15. https://doi.org/10.1016/J.CHB.2017.04.019
[10]
Sara Bastiaensens, Heidi Vandebosch, Karolien Poels, Katrien Van Cleemput, Ann Desmet, and Ilse De Bourdeaudhuij. 2014. ‘Can I afford to help?’ How affordances of communication modalities guide bystanders’ helping intentions towards harassment on social network sites. http://dx.doi.org/10.1080/0144929X.2014.983979 34 (4 2014), 425–435. Issue 4. https://doi.org/10.1080/0144929X.2014.983979
[11]
Lindsay Blackwell, Nicole Ellison, Natasha Elliott-Deflo, and Raz Schwartz. 2019. Harassment in Social Virtual Reality: Challenges for Platform Governance. Proc. ACM Hum.-Comput. Interact. 3, CSCW, Article 100 (nov 2019), 25 pages. https://doi.org/10.1145/3359202
[12]
Lindsay Blackwell, Emma Gardiner, and Sarita Schoenebeck. 2016. Managing expectations: Technology tensions among parents and teens. Proceedings of the ACM Conference on Computer Supported Cooperative Work, CSCW 27 (2 2016), 1390–1401. https://doi.org/10.1145/2818048.2819928
[13]
Hannah Bloch-Wehba. 2020. Automation in Moderation. Cornell International Law Journal 53 (3 2020). Issue 1. https://scholarship.law.tamu.edu/facscholar/1448
[14]
Lila Ghent Braine, Eva Pomerantz, Debra Lorber, and David H. Krantz. 1991. Conflicts With Authority: Children’s Feelings, Actions, and Justifications. Developmental Psychology 27 (1991), 829–840. Issue 5. https://doi.org/10.1037/0012-1649.27.5.829
[15]
Virginia Braun and Victoria Clarke. 2006. Using thematic analysis in psychology. Qualitative Research in Psychology 3 (2006), 77–101. Issue 2. https://doi.org/10.1191/1478088706QP063OA
[16]
J Brooke. 1996. Usability evaluation in industry, chap. SUS: a “quick and dirty” usability scale.
[17]
Christoph Burger, Dagmar Strohmeier, and Lenka Kollerová. 2022. Teachers Can Make a Difference in Bullying: Effects of Teacher Interventions on Students’ Adoption of Bully, Victim, Bully-Victim or Defender Roles across Time. Journal of Youth and Adolescence 2022 (9 2022), 1–16. https://doi.org/10.1007/S10964-022-01674-6
[18]
Heather M. Clarke and Lorne M. Sulsky. 2019. The Impact of Gender Stereotypes on the Appraisal of Civic Virtue Performance. Journal of Research in Gender Studies 9 (2019). https://heinonline.org/HOL/Page?handle=hein.journals/jogenst9&id=221&div=19&collection=journals
[19]
Caitlin R. Costello and Danielle E. Ramo. 2017. Social Media and Substance Use: What Should We Be Recommending to Teens and Their Parents?Journal of Adolescent Health 60 (6 2017), 629–630. Issue 6. https://doi.org/10.1016/j.jadohealth.2017.03.017
[20]
Maral Dadvar and Franciska de Jong. 2012. Cyberbullying Detection: A Step toward a Safer Internet Yard. In Proceedings of the 21st International Conference on World Wide Web (Lyon, France) (WWW ’12 Companion). Association for Computing Machinery, New York, NY, USA, 121–126. https://doi.org/10.1145/2187980.2187995
[21]
Rebecca N.H. de Leeuw and Christa A. van der Laan. 2017. Helping behavior in Disney animated movies and children’s helping behavior in the Netherlands. https://doi.org/10.1080/17482798.2017.1409245 12 (4 2017), 159–174. Issue 2. https://doi.org/10.1080/17482798.2017.1409245
[22]
Giulio D’Urso and Ugo Pace. 2019. Homophobic bullying among adolescents: The role of insecure-dismissing attachment and peer support. https://doi.org/10.1080/19361653.2018.1552225 16 (4 2019), 173–191. Issue 2. https://doi.org/10.1080/19361653.2018.1552225
[23]
Giulio D’Urso, Jennifer Symonds, Seaneen Sloan, and Dympna Devine. 2022. Bullies, victims, and meanies: the role of child and classmate social and emotional competencies. Social Psychology of Education 25 (2 2022), 293–312. Issue 1. https://doi.org/10.1007/S11218-021-09684-1/TABLES/3
[24]
Lisa A Elkin, Paul G Allen, Matthew Kay, James J Higgins, and Jacob O Wobbrock. 2021. An Aligned Rank Transform Procedure for Multifactor Contrast Tests; An Aligned Rank Transform Procedure for Multifactor Contrast Tests. 15 (2021). Issue 21. https://doi.org/10.1145/3472749.3474784
[25]
L. Christian Elledge, Timothy A. Cavell, Nick T. Ogle, and Rebecca A. Newgent. 2010. School-based mentoring as selective prevention for bullied children: A preliminary test. Journal of Primary Prevention 31 (6 2010), 171–187. Issue 3. https://doi.org/10.1007/S10935-010-0215-7
[26]
Cristina Fiani, Robin Bretin, Mark McGill, and Mohamed Khamis. 2023. Big Buddy: A Simulated Embodied Moderating System to Mitigate Children’s Reaction to Provocative Situations within Social Virtual Reality. In Extended Abstracts of the 2023 CHI Conference on Human Factors in Computing Systems (CHI EA ’23) (Hamburg, Germany). ACM, New York, NY, USA, 7. https://doi.org/10.1145/3544549.3585840
[27]
Cristina Fiani and Stacy Marsella. 2022. Investigating the Non-Verbal Behavior Features of Bullying for the Development of an Automatic Recognition System in Social Virtual Reality. In Proceedings of the 2022 International Conference on Advanced Visual Interfaces (Frascati, Rome, Italy) (AVI 2022). Association for Computing Machinery, New York, NY, USA, Article 67, 3 pages. https://doi.org/10.1145/3531073.3534492
[28]
Guo Freeman, Samaneh Zamanifard, Divine Maloney, and Dane Acena. 2022. Disturbing the Peace: Experiencing and Mitigating Emerging Harassment in Social Virtual Reality. Proc. ACM Hum.-Comput. Interact. 6, CSCW1, Article 85 (apr 2022), 30 pages. https://doi.org/10.1145/3512932
[29]
Guo Freeman, Samaneh Zamanifard, Divine Maloney, and Alexandra Adkins. 2020. My Body, My Avatar: How People Perceive Their Avatars in Social Virtual Reality. In Extended Abstracts of the 2020 CHI Conference on Human Factors in Computing Systems (Honolulu, HI, USA) (CHI EA ’20). Association for Computing Machinery, New York, NY, USA, 1–8. https://doi.org/10.1145/3334480.3382923
[30]
Gary W. Giumetti and Robin M. Kowalski. 2022. Cyberbullying via social media and well-being. Current Opinion in Psychology 45 (6 2022), 101314. https://doi.org/10.1016/J.COPSYC.2022.101314
[31]
Patricia M. Greenfield. 2004. Developmental considerations for determining appropriate Internet use guidelines for children and adolescents. Journal of Applied Developmental Psychology 25, 6 (2004), 751–762. https://doi.org/10.1016/j.appdev.2004.09.008 Developing Children, Developing Media - Research from Television to the Internet from the Children’s Digital Media Center: A Special Issue Dedicated to the Memory of Rodney R. Cocking.
[32]
Sevtap Gurdal and Emma Sorbring. 2019. Children’s agency in parent–child, teacher–pupil and peer relationship contexts. https://doi.org/10.1080/17482631.2019.1565239 13 (6 2019). Issue sup1. https://doi.org/10.1080/17482631.2019.1565239
[33]
Sandra G. Hart and Lowell E. Staveland. 1988. Development of NASA-TLX (Task Load Index): Results of Empirical and Theoretical Research. In Human Mental Workload, Peter A. Hancock and Najmedin Meshkati (Eds.). Advances in Psychology, Vol. 52. North-Holland, 139–183. https://doi.org/10.1016/S0166-4115(08)62386-9
[34]
Heidi Hartikainen, Netta Iivari, and Marianne Kinnula. 2016. Should We design for control, trust or involvement? A discourses survey about children’s online safety. Proceedings of IDC 2016 - The 15th International Conference on Interaction Design and Children (6 2016), 367–378. https://doi.org/10.1145/2930674.2930680
[35]
Jie He, Xinyi Jin, Meng Zhang, Xiang Huang, Rende Shui, and Mowei Shen. 2013. Anger and selective attention to reward and punishment in children. Journal of experimental child psychology 115 (7 2013), 389–404. Issue 3. https://doi.org/10.1016/J.JECP.2013.03.004
[36]
Alexis Hiniker, Sarita Y. Schoenebeck, and Julie A. Kientz. 2016. Not at the dinner table: Parents’ and children’s perspectives on family technology rules. Proceedings of the ACM Conference on Computer Supported Cooperative Work, CSCW 27 (2 2016), 1376–1389. https://doi.org/10.1145/2818048.2819940
[37]
Julie A Hubbard. 2001. Emotion expression processes in children’s peer interaction: The role of peer rejection, aggression, and gender. Child development 72, 5 (2001), 1426–1438.
[38]
Catherine Knibbs. 2022. Children, technology and healthy development : how to help kids be safe and thrive online. 183 pages. https://www.routledge.com/Children-Technology-and-Healthy-Development-How-to-Help-Kids-be-Safe-and/Knibbs/p/book/9780367770150
[39]
Yubo Kou and Xinning Gui. 2021. Flag and Flaggability in Automated Moderation: The Case of Reporting Toxic Behavior in an Online Game Community. In Proceedings of the 2021 CHI Conference on Human Factors in Computing Systems (Yokohama, Japan) (CHI ’21). Association for Computing Machinery, New York, NY, USA, Article 437, 12 pages. https://doi.org/10.1145/3411764.3445279
[40]
Peter J Lang, Margaret M Bradley, Bruce N Cuthbert, 2005. International affective picture system (IAPS): Affective ratings of pictures and instruction manual. NIMH, Center for the Study of Emotion & Attention Gainesville, FL.
[41]
Shaun Alexander MacDonald, Euan Freeman, Stephen Brewster, and Frank Pollick. 2021. User Preferences for Calming Affective Haptic Stimuli in Social Settings. ICMI 2021 - Proceedings of the 2021 International Conference on Multimodal Interaction (10 2021), 387–396. https://doi.org/10.1145/3462244.3479903
[42]
Thabo Mahlangu, Chunling Tu, and Pius Owolawi. 2019. A review of automated detection methods for cyberbullying. 2018 International Conference on Intelligent and Innovative Computing Applications, ICONIC 2018 (1 2019). https://doi.org/10.1109/ICONIC.2018.8601278
[43]
Divine Maloney, Guo Freeman, and Andrew Robb. 2020. It Is Complicated: Interacting with Children in Social Virtual Reality. Proceedings - 2020 IEEE Conference on Virtual Reality and 3D User Interfaces, VRW 2020 (3 2020), 343–347. https://doi.org/10.1109/VRW50115.2020.00075
[44]
Divine Maloney, Guo Freeman, and Andrew Robb. 2020. A Virtual Space for All: Exploring Children’s Experience in Social Virtual Reality. CHI PLAY 2020 - Proceedings of the Annual Symposium on Computer-Human Interaction in Play, 472–483. https://doi.org/10.1145/3410404.3414268
[45]
Divine Maloney, Guo Freeman, and Andrew Robb. 2021. Stay Connected in An Immersive World: Why Teenagers Engage in Social Virtual Reality. Proceedings of Interaction Design and Children, IDC 2021, 69–79. https://doi.org/10.1145/3459990.3460703
[46]
Divine Maloney, Guo Freeman, and Donghee Yvette Wohn. 2020. "Talking without a Voice": Understanding Non-Verbal Communication in Social Virtual Reality. Proc. ACM Hum.-Comput. Interact. 4, CSCW2, Article 175 (oct 2020), 25 pages. https://doi.org/10.1145/3415246
[47]
Joshua McVeigh-Schultz, Elena Márquez Segura, Nick Merrill, and Katherine Isbister. 2018. What’s It Mean to "Be Social" in VR? Mapping the Social VR Design Ecology. In Proceedings of the 2018 ACM Conference Companion Publication on Designing Interactive Systems (Hong Kong, China) (DIS ’18 Companion). Association for Computing Machinery, New York, NY, USA, 289–294. https://doi.org/10.1145/3197391.3205451
[48]
Andy Miller, Eamonn Ferguson, and Rachel Simpson. 1998. The Perceived Effectiveness of Rewards and Sanctions in Primary Schools: adding in the parental perspective. Educational Psychology 18, 1 (1998), 55–64. https://doi.org/10.1080/0144341980180104 arXiv:https://doi.org/10.1080/0144341980180104
[49]
Peter E. Morris and Catherine O. Fritz. 2013. Effect sizes in memory research. http://dx.doi.org/10.1080/09658211.2013.763984 21 (10 2013), 832–842. Issue 7. https://doi.org/10.1080/09658211.2013.763984
[50]
Joseph O’Hagan, Julie R. Williamson, Mark McGill, and Mohamed Khamis. 2021. Safety, Power Imbalances, Ethics and Proxy Sex: Surveying In-The-Wild Interactions Between VR Users and Bystanders. In 2021 IEEE International Symposium on Mixed and Augmented Reality (ISMAR). 211–220. https://doi.org/10.1109/ISMAR52148.2021.00036
[51]
Aaron Powers and Sara Kiesler. 2006. The Advisor Robot: Tracing People’s Mental Model from a Robot’s Physical Attributes. HRI 2006: Proceedings of the 2006 ACM Conference on Human-Robot Interaction 2006, 218–225. https://doi.org/10.1145/1121241.1121280
[52]
John T.E. Richardson. 2011. Eta squared and partial eta squared as measures of effect size in educational research. Educational Research Review 6, 2 (2011), 135–147. https://doi.org/10.1016/j.edurev.2010.12.001
[53]
H. Rosa, N. Pereira, R. Ribeiro, P. C. Ferreira, J. P. Carvalho, S. Oliveira, L. Coheur, P. Paulino, A. M. Veiga Simão, and I. Trancoso. 2019. Automatic cyberbullying detection: A systematic review. Computers in Human Behavior 93 (4 2019), 333–345. https://doi.org/10.1016/J.CHB.2018.12.021
[54]
Kathleen Van Royen, Karolien Poels, Heidi Vandebosch, and Philippe Adam. 2017. “Thinking before posting?” Reducing cyber harassment on social networking sites through a reflective message. Computers in Human Behavior 66 (1 2017), 345–352. https://doi.org/10.1016/J.CHB.2016.09.040
[55]
James A. Russell. 1980. A circumplex model of affect. Journal of Personality and Social Psychology 39 (12 1980), 1161–1178. Issue 6. https://doi.org/10.1037/H0077714
[56]
Kelsea Schulenberg, Lingyuan Li, Guo Freeman, Samaneh Zamanifard, and Nathan J. McNeese. 2023. Towards Leveraging AI-based Moderation to Address Emergent Harassment in Social Virtual Reality. (2023), 17. https://doi.org/10.1145/3544548.3581090
[57]
Evropi Stefanidi, Maria Korozi, Asterios Leonidis, Dimitrios Arampatzis, Margherita Antona, and George Papagiannakis. 2021. When Children Program Intelligent Environments: Lessons Learned from a Serious AR Game. Proceedings of Interaction Design and Children, IDC 2021 (6 2021), 375–386. https://doi.org/10.1145/3459990.3462463
[58]
Marie S. Tisak, Dushka Crane-Ross, John Tisak, and Amanda M. Maynard. 2000. Mothers’ and Teachers’ Home and School Rules: Young Children’s Conceptions of Authority in Context. Merrill-Palmer Quarterly 46, 1 (2000), 168–187. http://www.jstor.org/stable/23093347
[59]
Wen-Jie Tseng, Elise Bonnail, Mark McGill, Mohamed Khamis, Eric Lecolinet, Samuel Huron, and Jan Gugenheimer. 2022. The Dark Side of Perceptual Manipulations in Virtual Reality. In Proceedings of the 2022 CHI Conference on Human Factors in Computing Systems (New Orleans, LA, USA) (CHI ’22). Association for Computing Machinery, New York, NY, USA, Article 612, 15 pages. https://doi.org/10.1145/3491102.3517728
[60]
Rogier E.J. Verhoef, Anouk van Dijk, Esmée E. Verhulp, and Bram O. de Castro. 2021. Interactive virtual reality assessment of aggressive social information processing in boys with behaviour problems: A pilot study. Clinical Psychology and Psychotherapy 28 (5 2021), 489–499. Issue 3. https://doi.org/10.1002/cpp.2620
[61]
Jacob O Wobbrock, Leah Findlater, Darren Gergle, and James J Higgins. 2011. The Aligned Rank Transform for Nonparametric Factorial Analyses Using Only ANOVA Procedures. (2011). http://faculty.washington.edu/wobbrock/art/
[62]
Serkan Çankaya and Hatice Ferhan Odabaşi. 2009. Parental controls on children’s computer and Internet use. Procedia - Social and Behavioral Sciences 1 (1 2009), 1105–1109. Issue 1. https://doi.org/10.1016/J.SBSPRO.2009.01.199

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  • (2024)Exploring the Perspectives of Social VR-Aware Non-Parent Adults and Parents on Children's Use of Social Virtual RealityProceedings of the ACM on Human-Computer Interaction10.1145/36528678:CSCW1(1-25)Online publication date: 26-Apr-2024
  • (2024)Is Your Family Ready for VR? Ethical Concerns and Considerations in Children's VR UsageProceedings of the 23rd Annual ACM Interaction Design and Children Conference10.1145/3628516.3655804(436-454)Online publication date: 17-Jun-2024
  • (2024)Novel Approaches for Understanding and Mitigating Emerging New Harms in Immersive and Embodied Virtual Spaces: A Workshop at CHI 2024Extended Abstracts of the 2024 CHI Conference on Human Factors in Computing Systems10.1145/3613905.3636288(1-7)Online publication date: 11-May-2024
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  1. Big Buddy: Exploring Child Reactions and Parental Perceptions towards a Simulated Embodied Moderating System for Social Virtual Reality

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    cover image ACM Conferences
    IDC '23: Proceedings of the 22nd Annual ACM Interaction Design and Children Conference
    June 2023
    824 pages
    ISBN:9798400701313
    DOI:10.1145/3585088
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    Published: 19 June 2023

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    Author Tags

    1. automated moderator
    2. children
    3. embodied moderating system
    4. online harassment
    5. parents
    6. social virtual reality

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    • Research-article
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    • Refereed limited

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    - Appendix pdf - Combined Coding Scheme pdf https://dl.acm.org/doi/10.1145/3585088.3589374#Appendix.pdf

    Funding Sources

    • UKRI Centre for Doctoral Training in Socially Intelligent Artificial Agents
    • Meta Responsible Innovation

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    IDC '23: Interaction Design and Children
    June 19 - 23, 2023
    IL, Chicago, USA

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    Overall Acceptance Rate 172 of 578 submissions, 30%

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    • (2024)Exploring the Perspectives of Social VR-Aware Non-Parent Adults and Parents on Children's Use of Social Virtual RealityProceedings of the ACM on Human-Computer Interaction10.1145/36528678:CSCW1(1-25)Online publication date: 26-Apr-2024
    • (2024)Is Your Family Ready for VR? Ethical Concerns and Considerations in Children's VR UsageProceedings of the 23rd Annual ACM Interaction Design and Children Conference10.1145/3628516.3655804(436-454)Online publication date: 17-Jun-2024
    • (2024)Novel Approaches for Understanding and Mitigating Emerging New Harms in Immersive and Embodied Virtual Spaces: A Workshop at CHI 2024Extended Abstracts of the 2024 CHI Conference on Human Factors in Computing Systems10.1145/3613905.3636288(1-7)Online publication date: 11-May-2024
    • (2024)"Pikachu would electrocute people who are misbehaving": Expert, Guardian and Child Perspectives on Automated Embodied Moderators for Safeguarding Children in Social Virtual RealityProceedings of the CHI Conference on Human Factors in Computing Systems10.1145/3613904.3642144(1-23)Online publication date: 11-May-2024
    • (2024)Knowing versus doingInternational Journal of Child-Computer Interaction10.1016/j.ijcci.2024.10064740:COnline publication date: 1-Jun-2024
    • (2023)User Reviews as a Reporting Mechanism for Emergent Issues Within Social VR CommunitiesProceedings of the 22nd International Conference on Mobile and Ubiquitous Multimedia10.1145/3626705.3627780(236-243)Online publication date: 3-Dec-2023

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