Background: In order to prevent school bullying and cyberbullying, brief measurement instruments with adequate psychometric properties are required. The objective of this study was to develop a combined reduced version of the European Bullying Intervention Project Questionnaire (EBIP-Q) and the European Cyberbullying Intervention Project Questionnaire (ECIP-Q) for its use in the screening of bullying-related behaviors at school.
Method: The sample consisted of 1777 students, between 14 and 18 years of age (M = 15.71; SD = 1.26), of which 54.1% were female.
Results: The resulting reduced version presents adequate psychometric properties with reliability coefficients between ω = .72 and ω = .82. Factor analyses indicate that both bullying and cyberbullying are structured around two factors: victimization and aggression. The correlations between the scores of the original version and the reduced version were adequate. Bullying and cyberbullying was associated with different indicators of socioemotional adjustment.
Conclusions: The European Bullying and Cyberbullying Intervention Project Questionnaire Brief version (EBCIP-QB) seems to be brief, useful, and have adequate psychometric properties for the assessment of bullying and cyberbullying in Spanish adolescents.