Received: 24 April 2019
Accepted: 5 September 2019
First Online: 1 November 2019
Ethics approval and consent to participate
: Ethical approval was obtained from the University of Central Lancashire Ethics Committee (Reference PSY1011085). Written consent was obtained from each Centre manager. Parents provided written consent for themselves and consent on behalf of their child. Children also consented verbally.
: Not applicable.
: The authors declare that they have no competing interests.