Funding for this research was provided by:
Marie Curie VINNMER International Qualification (2011-03443)
Oregon Social Learning Center
Received: 25 September 2020
Accepted: 2 March 2021
First Online: 24 March 2021
: The Grandparents study was approved by the Internal Review Board of the Oregon Social Learning Center, where PN was a postdoctoral researcher. Participants received an information sheet about the study, where they learned that the interviewers were interested in child development and family dynamics. All participants provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.