Table 1.

Inclusion and exclusion criteria of the study.

Inclusion	Exclusion
Population	Population
0–36-month-old children The ‘ordinary’ (physically well, ‘healthy’) population of young children	Above 36 months Specific groups of children with specific conditions, e.g., autism, Down’s syndrome, cerebral palsy or similar
Type of intervention	Type of intervention
Takes place in the child’s ‘natural’ environment with the child’s carers making an effort to promote the child’s motor development. For example, parents at home who participate in the intervention or day care staff in a nursery or similar. The aim is to improve the motor development of the 0–36-month-old child. The content of the intervention itself can be of different types and duration	Not ‘natural’ (e.g., specialised training, such as by physiotherapists)
Caregivers	Caregivers
Parents Daycare staff	Other caregivers, e.g., physiotherapist, occupational therapist or doctor, are excluded. Defined groups that do not correspond to the general normal population of carers (e.g., only parents with certain conditions in vulnerable areas or with an illness, etc.)
Geographical and cultural area	Geographical and cultural area
Studies in Western European countries, North America and Australia	Studies from developing/third world countries are excluded as the context and premises are dissimilar, compared to developed countries
Outcome measure	Study type
Primary outcome measure: impact of interventions on children’s motor development	Everything that is not peer-reviewed scientific articles