The purpose of this study is to evaluate the efficacy of a transdiagnostic, parent-led, Internet-delivered intervention in reducing child and adolescent internalizing problems.

Anxiety and depressive symptoms are common in children and adolescents. There is substantial research indicating that transdiagnostic Internet interventions are effective for adults and children with anxiety and depressive disorders; however, there is limited research on the efficacy of such programs aimed at parents of children and adolescents with anxiety and depressive symptoms. This study aims to investigate the efficacy of a transdiagnostic Internet intervention for parents of children with elevated anxiety and depressive symptoms.

Inclusion Criteria:

• parent of a child/ adolescent aged 6 to 14 years
• elevated internalizing problems
• have Internet access

Exclusion Criteria:

• undergoing psychotherapy/ pharmacological treatment

De-identified data will be uploaded after publication of the results.

De-identified data will be uploaded after publication of the results.

Upon the completion of the study, de-identified datasets will be available from the corresponding author on reasonable request.