The classmates social isolation questionnaire for adolescents (CSIQ-A): Validation and invariance across immigrant background, gender and socioeconomic level
It is widely acknowledged that the social relationships of adolescents with their classmates can have a significant impact on their adjustment to the school environment and their psychological well-being. This study, based on a random sample of 36,712students, investigates the psychometric properties and the validity of the Classmates Social Isolation Questionnaire for Adolescents (CSIQ-A), a time-efficient instrument intended to measure peer relatedness at school. Confirmatory factor analysis established the bidimensional structure of the scale.