The VIA Family 2.0 - a Family Based Intervention for Families with Parental Mental Illness

Primary outcome for children/adolescents aged 3 years to 17 years will be child's development and wellbeing measured by Strengths and Difficulties Questionnaire (SDQ), which has been used in several other studies, is easy to complete, has Danish norms and is a part of the diagnostic evaluation, Development and Well-Being Assessment, (DAWBA), will be used for psychopathology assessment as well, and can be filled in digitally by the primary caregiver before the clinical assessment. The higher score, the more problems Rated by child from age 11 and by always by parent. A 25 item self-report questionnaire assessing developmental, behavioural and emotional problems completed by children aged 11-17. Items are rated on a three-point Likert scale (0= not true, 1= somewhat true, 2= certainly true).

The primary outcome for the youngest children aged 0-2 years will be scores from Bayley-4, a clinical test of the child's cognitive, language, motor and emotional development, conducted by a trained researcher. Scores range from 1-19, the higher score the better functioning

Primary outcome for the whole family is family functioning rated by the primary caregiver. Family function will be measured by the questionnaire Family Assessment Device, a 12 item questionnaire by the parents and children from age 12 Scale from 1-4. Low score represents better outcome.

The primary outcome for the parents is parental stress measured by the Parental Stress Scale (PSS), which is a 18 item parent-reported questionnaire on the quality of experienced stress related to parenting. Score 1-5. A higher score indicates more parental stress.

A clinician rated semi-structured interview with both caregiver and child measuring stimulation and support in the home environment (scale 0-60/62 dep on age versions). Higher score represents better outcome.

30 item questionnaire assessing changes in parenting practices, parental adjustment, and family relationships. Scores from 0-90, higher scores indicates poorer parenting or adaptation

A clinical rated measurement based on interview to assess general functioning in children. Information is obtained from the child and the caregiver, separately. Scale from 1-100. Higher score indicates better functioning.

10 item questionnaire measuring perceived stress (parents)

Questionnaire with 8 items measuring patient/client .Total scores range from 8 to 32, with the higher number indicating greater satisfaction.

Questionnaire measuring child social and emotional development and milestones. Scores range from 0-465, higher scores above cut-off (59) indicate social and emotional problems.

14 item questionnaire measuring child stress, scores range from 0-56, the higher score the higher level of perceived stress

A 12 item self-report questionnaire from age 5 assessing resiliency in children across a number of areas including personal skills, peer support, social skills, physical and psychological caregiving, educational and cultural. Items are rated on a 3- or 5-point Likert scale. Higher scores indicating greater resiliency.

Test for children aged 2-24 months measuring social withdrawal, scores range from 0-32, scores above 4 indicate social withdrawal, the higher score the more severe

An interviewer-rated scale assessing the parent's personal and social functioning over four domains (social activities, social relationships, self-care and aggressive behavior).

Scores range from 1-100, the higher score the better social functioning.

14 item questionnaire measuring mental wellbeing (non-index parent) scores range from 14 to 70, the higher scores, the better mental wellbeing

An interviewer-rated scale assessing the Parents Level of Psychiatric Symptoms. GAF-S provides a score from 1-100, with higher scores indicating better outcome.

10 item questionnaire on psychological distress with a five-level response scale. Scale from 10-50. Higher score indicating higher level of psychological distress.

10 item questionnaire measuring general belief in one's own capabilities. Self-report. Total score is measured. Ranges from 10 to 40. Higher scores indicates better self-efficacy.

The perceived social network can be understood as a resource for resilience and will be measured with Social Provision Scale (SPS) short form, a.10 item questionnaire, with scores ranging from 10-40, the higher score the better social provision perceived

6 item questionnaire, range from 0-100, the higher score the better health

20 item questionnaire on mental health self-stigma (only index parent), in four subscales (stereotype awareness, stereotype agreement, application to self , harm to self-esteem), each scoring from 5 (low) to 45 (high).

15 item questionnaire on the process of recovery on a 4-point scale. Higher scores are indicative of recovery. Only index parent.

A clinician rated test measuring general intelligence. The RIST comprises a verbal subtest (Guess What) and a nonverbal subtest (Odd-Item Out).

Guess What is a classic measure of crystallized intelligence, whereas Odd-Item Out shares characteristics with fluid intelligence.