Applying the Theoretical Domains Framework to Develop an Intervention to 'Re-implement' Parent-Child Interaction Therapy (PCIT).

"Declarations Conflict of InterestThe research was supported by a Clinical Research Training Fellowship for Dr Melanie Woodfield from the Health Research Council (HRC) of New Zealand. At the time of the study, Professor Sally Merry held the Cure Kids Duke Family Chair in Child and Adolescent Mental Health. Associate Professor Sarah Hetrick held an Auckland Medical Research Foundation (AMRF) Douglas Goodfellow Repatriation Fellowship and was a Cure Kids Research Fellow. The HRC, AMRF and Cure Kids were not involved in study design or execution. Methods and Reporting GuidelinesWe followed Atkins and colleagues’ 2017 paper (“A guide to using the Theoretical Domains Framework of behaviour change to investigate implementation problems”) in the design and execution of the study. We have described the study according to Tong and colleagues’ 2007 reporting guidelines, namely the Consolidated Criteria for Reporting Qualitative Research (COREQ). Conflict of Interest The research was supported by a Clinical Research Training Fellowship for Dr Melanie Woodfield from the Health Research Council (HRC) of New Zealand. At the time of the study, Professor Sally Merry held the Cure Kids Duke Family Chair in Child and Adolescent Mental Health. Associate Professor Sarah Hetrick held an Auckland Medical Research Foundation (AMRF) Douglas Goodfellow Repatriation Fellowship and was a Cure Kids Research Fellow. The HRC, AMRF and Cure Kids were not involved in study design or execution."

"Funding Open Access funding enabled and organized by CAUL and its Member Institutions."