We also have an ongoing sub-study of the Study members as parents. As for the FHHS, study data collection occurs in participants’ own homes, around the time of their first child’s third birthday. Of the eligible (actively parenting a 3-year-old child) Study members, 99 % have participated in this study to date and several papers have been published [14–18]. A ‘third’ generation study has recently been added to focus on all children of the Study members when they reach the age of 15 years. These children, and their Study member parent in most cases, are invited back to the Dunedin Study Research Unit where they undergo an assessment similar to that which their parents experienced over a quarter of a century ago, but updated for contemporary issues (e.g., social media use is assessed). A short phone-assessment is conducted with the non-Study member parent at this time, with n = 300+ taking part so far.
