Abstract This study explored the validity and reliability of the cyber-aggression and cyber-victimization (CAV) scale. Data to assess this 24-item scale was collected from 609 students in grades 6 and 7 in the Lower Mainland of British Columbia via a self-report questionnaire. Confirmatory factor analysis provided evidence for construct validity, with strong support for a two-factor model: cyber-aggression perpetration (CAV-P) and cyber-victimization (CAV-V). Structural invariance was found for boys and girls, as well as for participants of Asian descent. Associations between the two subscales demonstrated adequate concurrent validity. Finally, partial correlations, in directions as expected with other social-emotional outcomes (e.g., depression, anxiety, rumination, aggression and school connectedness), provided robust evidence of convergent validity.