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Dive into the research topics where Manuel Gámez-Guadix is active.

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Featured researches published by Manuel Gámez-Guadix.


Spanish Journal of Psychology | 2010

Analysis of the Indicators of Pathological Internet Use in Spanish University Students

Marina Muñoz-Rivas; Liria Fernández; Manuel Gámez-Guadix

Addiction to and problematic use of the Internet are relatively recent phenomena whose scope, characteristics and correlates have begun to receive increasing attention by clinicians and researchers alike. The purpose of this study was to examine the relationship between time spent connected to the Internet and the variables that indicate a pathological and addictive use of this technological resource. The sample was comprised of 1,301 university students of both sexes (927 women and 374 men), with ages ranging from 18 to 30 years old. The results showed that, although most people use the Internet appropriately, users who invest higher quantities of time in the Internet more frequently exhibit connection behavior that is controlled through negative reinforcement, a high degree of arousal when online, loss of control over connection behavior, changes in health-related habits, and interference in the social, family, academic, or work spheres. These findings suggest that excessive Internet use is associated with the onset of several problems that are similar to those associated with other behavioral and technological addictions.


Journal of Interpersonal Violence | 2013

Child-to-Parent Violence Emotional and Behavioral Predictors

Esther Calvete; Izaskun Orue; Manuel Gámez-Guadix

Child-to-parent violence (CPV) includes acts committed by a child to intentionally cause physical, psychological, or financial pain to a parent. Available data indicate increasing rates of CPV in Spain, which have been attributed to a tendency toward more permissive parenting styles and changes in the power cycles within the families. The primary aim of this study was to assess the predictive role of some behavioral and emotional characteristics of adolescents who perpetrate CPV. A total of 1,072 adolescents (601 girls) filled out measures of CPV, proactive and reactive aggression, depressive symptoms, and substance abuse at Time 1, and measures of CPV 6 months later. The results showed that CPV was predicted by proactive, but not by reactive, aggression. This finding supports an instrumental role for CPV, which should be understood in the context of permissibility and lack of limits within the family. Depression and substance abuse also predicted the increase of CPV over time. Moreover, there were no sex differences in the prevalence of physical CPV, but verbal CPV was more predominant among girls. Although there were sex differences in some of the risk factors for CPV, the predictive model linking these risks to CPV was similar for boys and girls. Findings of this study suggest a psychological profile that combines internalizing problems and an instrumental use of violence in adolescents who perpetrate CPV. These characteristics are important for interventions.


Journal of Adolescence | 2012

Measurement and analysis of the cognitive-behavioral model of generalized problematic Internet use among Mexican adolescents

Manuel Gámez-Guadix; Fabiola Villa-George; Esther Calvete

The objectives of this study were to analyze the psychometric properties of the Generalized Problematic Internet Use Scale 2 (GPIUS2) and to examine the cognitive-behavioral theoretical model of problematic Internet use in a sample of 1491 Mexican adolescents (47.6% female, mean age = 14.51). Results showed that the GPIUS2 has adequate construct and convergent validity and internal consistency. Consistent with the hypotheses put forth by the cognitive-behavioral model, the findings indicate that preference for online social interaction and the use of the Internet for mood regulation increased the probability of reporting deficient self-regulation (i.e., compulsive Internet use and cognitive preoccupations with Internet use), which, in turn, was significantly associated with negative life outcomes. The fit of the model was adequate both for males and females, and there were no significant differences between them. Lastly, we discuss the contributions of this research to this field of study.


Deviant Behavior | 2011

Childhood and Adolescent Victimization and Perpetration of Sexual Coercion by Male and Female University Students

Manuel Gámez-Guadix; Murray A. Straus; Scott L. Hershberger

This study examines the extent to which male and female university students use verbal sexual coercion and physically forced sex on a dating partner and tests a theoretical model that specifies that corporal punishment, minor forms of neglect by parents, and sexual abuse increase the probability of sexually coercing and sexually assaulting a partner, and that this relationship is partly mediated by antisocial traits and behavior. A path analysis using multinomial logistic regression was used to test the fit of the model to a convenience sample of 13,877 students in 32 nations. Both male and female students perpetrate sexual coercion, but the rates are higher for males. For both men and women, each of the three forms of prior victimization studied were associated with an increased probability of antisocial behavior, which in turn was associated with an increased probability of verbally coercing and physically forcing sex. Most of the direct paths from victimization to sexual coercion were also statistically significant. Because relatively mild victimization such as corporal punishment and seemingly innocuous forms of neglect are highly prevalent, steps to reduce their prevalence could be an import step in primary prevention of sexual coercion.


Addictive Behaviors | 2015

Problematic Internet use and problematic alcohol use from the cognitive–behavioral model: A longitudinal study among adolescents

Manuel Gámez-Guadix; Esther Calvete; Izaskun Orue; Carlota Las Hayas

Problematic Internet use (PIU) and problematic alcohol use are two pervasive problems during adolescence that share similar characteristics and predictors. The first objective of this study was to analyze the temporal and reciprocal relationships among the main components of PIU from the cognitive-behavioral model (preference for online social interaction, mood regulation through the Internet, deficient self-regulation, and negative consequences). The second objective was to examine the temporal and reciprocal relationships between PIU components and problematic alcohol use. We also examined whether these relationships differ between males and females. The sample comprised 801 Spanish adolescents (mean age=14.92, SD=1.01) who completed the measures both at Time 1 (T1) and Time 2 (T2) six months apart. We used structural equation modeling to analyze the relationship among the variables. Results showed that deficient self-regulation at T1 predicted an increase in preference for online interactions, mood regulation, and negative consequences of the Internet at T2. In turn, the emergence of negative consequences of PIU at T1 predicted a rise in problematic alcohol use at T2. Longitudinal relationships between different components of PIU and between the components of PIU and problematic alcohol use were invariant across genders. Deficient self-regulation, consisting of diminished self-control over cognition and behaviors related to the Internet, plays a central role in the maintenance of PIU, increasing the preference for online interactions, mood regulation, and negative consequences from Internet use over time. In turn, adolescents who present negative consequences of PIU are vulnerable targets for problematic alcohol use.


Psicothema | 2013

Evaluation of the cognitive-behavioral model of generalized and problematic Internet use in Spanish adolescents

Manuel Gámez-Guadix; Izaskun Orue; Esther Calvete

BACKGROUND Problematic use of Internet is a growing concern that interferes in the family and academic life of adolescents. This study had three related objectives: 1) to analyze the psychometric properties of the Revised Generalized and Problematic Internet Use Scale (GPIUS2) among Spanish adolescents; 2) to examine the theoretical cognitive-behavioral model of generalized and problematic Internet use; and 3) to study the relationship between the type of Internet use and generalized and problematic Internet use. METHOD Participants were 1,021 adolescents in Bizkaia (55.7% girls, mean age = 14.95 years, SD = 1.71). RESULTS Factor analyses confirmed the internal structure of four factors originally proposed for GPIUS2, called Preference for online social interaction, Mood regulation, Deficient self-regulation, and Negative consequences. Consistent with the theoretical model, preference for online social interaction and mood regulation increased the likelihood of reporting deficient self-regulation, which, in turn, was associated with negative consequences for the adolescents. CONCLUSIONS The GPIUS2 is a reliable and valid instrument that can be used in adolescent samples. Furthermore, the results support the cognitive behavioral model of problematic Internet use in adolescents.


Journal of behavioral addictions | 2016

Risky online behaviors among adolescents: Longitudinal relations among problematic Internet use, cyberbullying perpetration, and meeting strangers online

Manuel Gámez-Guadix; Erika Borrajo; Carmen Almendros

Background and aims This study aims to analyze the cross-sectional and longitudinal relationship between three major risky online behaviors during adolescence: problematic Internet use, cyberbullying perpetration, and meeting strangers online. An additional objective was to study the role of impulsivity–irresponsibility as a possible explanatory variable of the relationships between these risky online behaviors. Methods The study sample was 888 adolescents that completed self-report measures at time 1 and time 2 with an interval of 6 months. Results The findings showed a significant cross-sectional relationship between the risky online behaviors analyzed. At the longitudinal level, problematic Internet use at time 1 predicted an increase in the perpetration of cyberbullying and meeting strangers online at time 2. Furthermore, meeting strangers online increased the likelihood of cyberbullying perpetration at time 2. Finally, when impulsivity–irresponsibility was included in the model as an explanatory variable, the relationships previously found remained significant. Discussion These results extend traditional problem behavior theory during adolescence, also supporting a relationship between different risky behaviors in cyberspace. In addition, findings highlighted the role of problematic Internet use, which increased the chances of developing cyberbullying perpetration and meeting strangers online over time. However, the results suggest a limited role of impulsivity–irresponsibility as an explicative mechanism. Conclusions The findings suggest that various online risk activities ought to be addressed together when planning assessment, prevention and intervention efforts.


Psychological Reports | 2015

Cyber dating abuse: prevalence, context, and relationship with offline dating aggression

Erika Borrajo; Manuel Gámez-Guadix; Esther Calvete

The use of information and communication technologies (ICT) as tools to intimidate, harass, and control the partner has been, so far, little studied in the literature. The aim of this study was to determine the extension and sex differences of victimization of cyber dating abuse, as well as the context in which it occurs, and its relationship with offline psychological and physical aggressions. The sample consisted of 433 college students ages 18 to 30 years. The results showed that over 50% of the participants had been victims of some type of cyber dating abuse in the last six months. The most common behavior was the use of ICT to control the partner. Also, victims of cyber dating abuse were victimized repeatedly, an average of 23 times in the last six months. The data also showed that cyber dating abuse appear usually in a context of jealousy. Finally, the results revealed a significant relationship between cyber dating abuse and offline psychological dating aggressions. Limitations and future lines of research are discussed.


Journal of Adolescence | 2013

Brief report: The Adolescent Child-to-Parent Aggression Questionnaire: An examination of aggressions against parents in Spanish adolescents

Esther Calvete; Manuel Gámez-Guadix; Izaskun Orue; Zahira González-Díez; E. Lopez de Arroyabe; R. Sampedro; Roberto Pereira; Anik Zubizarreta; Erika Borrajo

The objective of this study was to develop a questionnaire to assess child-to-parent aggression in adolescents and to document the extent of the problem. The questionnaire developed in this study, the Child-to-Parent Aggression Questionnaire (CPAQ), includes forms of physical and psychological aggression directed at both the mother and the father. It also includes open questions about the reasons for the aggressive acts. The CPAQ was completed by a sample of 2719 adolescents (age range: 13-18 years old, 51.4% girls). Confirmatory factor analysis supported a four-factor correlated structure (physical aggression against mother, physical aggression against father, psychological aggression against mother, and psychological aggression against father). Psychological and physical aggression against the mother was more frequent than against the father. However, there were no differences with regard to severe forms of aggression. Girls scored significantly higher on all indicators of psychological aggression, including severe psychological aggression. Nevertheless, except for the prevalence of physical aggression against mothers, which was higher in females, there were no significant differences in physical aggression against parents. Finally, the reasons provided by the adolescents for the aggression included both instrumental (e.g., to obtain permission to get home late and to access their computers) and reactive reasons (e.g., anger and self-defense). These findings highlight the complexity of child-to-parent aggression in adolescence.


Developmental Psychology | 2015

Predictors of child-to-parent aggression: A 3-year longitudinal study

Esther Calvete; Izaskun Orue; Manuel Gámez-Guadix; Brad J. Bushman

Although we rarely hear about it, children sometimes aggress against their parents. This is a difficult topic to study because abused parents and abusive children are both reluctant to admit the occurrence of child-to-parent aggression. There are very few research studies on this topic, and even fewer theoretical explanations of why it occurs. We predicted that exposure to violence in the home (e.g., parents aggressing against each other) and ineffective parenting (i.e., parenting that is overly permissive or lacks warmth) influences cognitive schemas of how children perceive themselves and the world around them (i.e., whether aggression is normal, whether they develop grandiose self-views, and whether they feel disconnected and rejected), which, in turn, predicts child-to-parent aggression. In a 3-year longitudinal study of 591 adolescents and their parents, we found that exposure to violence in Year 1 predicted child-to-parent aggression in Year 3. In addition, parenting characterized by lack of warmth in Year 1 was related to narcissistic and entitled self-views and disconnection and rejection schemas in Year 2, which, in turn, predicted child-to-mother and child-to-father aggression in Year 3. Gender comparisons indicated that narcissism predicted child-to-parent aggression only in boys and that exposure to violence was a stronger predictor of child-to-father violence in boys. This longitudinal study increases our understanding of the understudied but important topic of child-to-parent aggression, and will hopefully stimulate future research.

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Carmen Almendros

Autonomous University of Madrid

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Marina Muñoz-Rivas

Autonomous University of Madrid

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Patricia de Santisteban

Autonomous University of Madrid

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José Antonio Carrobles

Autonomous University of Madrid

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