Examinando por Autor "Machimbarrena, Juan M."
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Ítem Bidirectional relationships between cyberbystanders’ roles, cyberbullying perpetration, and justification of violence(SAGE Publications Inc., 2023-05) Orue Sola, Izaskun; Fernández González, Liria; Machimbarrena, Juan M.; González Cabrera, Joaquín; Calvete Zumalde, EstherBystanders play a key role in understanding the phenomenon of cyberbullying (CB). The main aim of this study is to explore longitudinal bidirectional relationships among cyberbystanders’ reaction, CB perpetration, and CB justification. Participants were 1,105 adolescents (56.7% girls; Mage = 13.56, SD = 1.21) who answered self-reported questionnaires about CB perpetration, CB justification, and cyberbystanders’ reaction at two measurement periods spaced 8 months apart. The results showed that cyberbystanders who assisted and/or reinforced the aggressor had higher scores for CB perpetration and justification than those who supported or defended the victim. Furthermore, cyberbystanders’ pro-aggressive behavior at Time 1 (T1) predicted an increase in CB perpetration and justification at Time 2 (T2), and T1 CB perpetration predicted an increase in T2 CB justification. These findings highlight the precursor role that acting as an assistant or reinforcer of the perpetrator may have on their own perpetration of future CB aggressions.Ítem Loot boxes in Spanish adolescents and young adults: relationship with internet gaming disorder and online gambling disorder(Elsevier Ltd, 2022) González Cabrera, Joaquín; Basterra González, María Aranzazu ; Montiel Juan, Irene; Calvete Zumalde, Esther; Pontes, Halley M.; Machimbarrena, Juan M.In recent years, the video game industry has introduced the possibility of buying virtual random goods (e.g., loot boxes) in electronic games using money through microtransactions, which are becoming more widespread and potentially akin to gambling. Although previous research has linked loot boxes with problematic gaming and gambling behaviors, there are very few studies that relate them to the clinical indicators of these problems. The overall goal of this study is to ascertain the prevalence of loot box purchasing behavior and its association with Internet Gaming Disorder (IGD) and Online Gambling Disorder (OGD). A secondary objective is to develop and analyze the psychometric properties of the Problematic Use of Loot Boxes Questionnaire (PU-LB). A cross-sectional study was conducted among 6633 participants (4236 males, 63.9%, and 4123 minors, 62.2%) with an average age of 16.73 ± 3.40 in a range of 11–30 years. The Spanish versions of the Internet Gaming Disorder Scale-Short Form (IGDS9-SF) and the Online Gambling Disorder Questionnaire (OGD-Q) were used. A total of 2013 (30.4%) participants reported purchasing a loot box in the last 12 months (28.9% among minors). A person who had purchased a loot box in the last 12 months had a prevalence rate (PR) of 3.66 [95% CI 2.66, 5.05] of presenting an IGD, and a PR = 4.85 [IC 95% 2.58, 9.12] of presenting an OGD. The PU-LB exhibited adequate reliability and validity indicators and was positively and significantly related to loot box expenditure, IGDS9-SF, and OGD-Q scores. The results are further discussed, and practical implications and future lines of research proposedÍtem Moderating factors of the association between being sexually solicited by adults and active online sexual behaviors in adolescents(Elsevier Ltd, 2021-11) Calvete Zumalde, Esther; Fernández González, Liria; Royuela Colomer, Estíbaliz; Morea, Aida; Larrucea Iruretagoyena, Maite; Machimbarrena, Juan M.; González Cabrera, Joaquín; Orue Sola, IzaskunOnline sexual solicitation involves receiving sexual solicitations from adults, which can be followed by active online sexual behaviors by the victims. This study examined the moderator role of some characteristics of adolescents (sex, age, and problematic Internet use) that could make them more vulnerable to react by engaging in active sexual behaviors when they are the recipients of sexual solicitations. The final sample was comprised of 1260 adolescents (55.6% girls, 12–17 years) who completed measures in two waves with an interval of one year. The measures included online sexual solicitation, active sexual interaction with an adult, and sexting to friends and/or one's partner in both waves of the study. Sexual solicitations by adults predicted an increase in sexualized interactions with adults and sending sexts to friends and/or one's partner. Moderation tests indicated that, although girls receive more sexual solicitations, they are actively involved to a lesser extent than boys in sexualized interactions with adults and in sending sexts. The youngest adolescents received fewer sexual solicitations, but those who did receive sexual solicitations sent more sexts to friends and/or one's partner. Problematic Internet use, although associated with all online sexual risks, did not moderate the dynamics between risks.