Mental health and participation in life situations are universal aspects of functioning. Mental health problems and participation restrictions are relatively often reported for children with disabilities. However, most population self-report surveys of mental health exclude children with severe or profound impairments because the children can’t respond to the questionnaires. In habilitation, many interventions are planned and decided upon in collaboration with parents but less frequently in collaboration with the children themselves. If adapted data collection methods and collaborative problem-solving methods are used the children themselves can provide information about their mental health and participate in the intervention planning process.