Preliminary reliability study of the affective lability scale adapted for adolescents in a francophone clinical population.

Objective: to study the reliability of a self-questionnaire on adolescent affective instability, within a francophone clinical population.

Method: After reviewing the literature and consulting experts, the Affective Lability Scale (ALS), developed by Harvey and collaborators (1989), was selected. An anglophone and francophone version, adapted for the adolescent population, was developed.