Efficacy of iMentalize and MISC-SA to Foster Parents' Mentalization and Children Mental Health in General Population.

OBJECTIVES: The goal of this parallel randomized controlled trial is to test the efficacy of the iMentalize program and the Mediational Intervention for Sensitizing Caregivers - Self Administered version (MISC-SA) to foster parents' mentalization and children mental health in families from general population. PARTICIPANTS will randomly receive one of the 3 interventions, all based in 30 weekly online non-synchronic sessions extended across 1 year: the iMentalize program (based on parent-child sessions where they see and talk about cartoon shorts), the MISC-SA (self-administered MISC version based on guided video-feedback using recordings of one's own parent-child interactions), and MISC-R (also self-administered but mainly based on readings and cognitive exercises instead of video-feedback), which is used here as Treatment as Usual (TAU, control group) because it is the most similar to most other intellectual and mainly theoretical trainings. COMPARISONS: Researchers will compare all 3 groups among them to see to what extent: * iMentalize program shows efficacy in fostering mentalization compared with MISC-SA and TAU (control group). * iMentalize program shows efficacy in fostering children's mental health compared with TAU (control group). * MISC-SA shows efficacy in fostering parent's mentalization and children mental health compared with TAU (control group).