Control group
Following login to the portal, parents are asked to fill in the T1-survey. Approximately 6–8 weeks later, when treatment group parents have completed their participation in PW, parents in the control group are invited to complete T2 data collection. Parents in the control group gain access to the PW following T2 data collection. When they are finished, they will be invited to a new survey (T3) via the web-portal.