“…The small number of studies meeting our inclusion criteria is likely related to our stringent inclusion criteria, which were targeted at identifying studies of practice models with child-and family-level outcome measures in public child protection services. Although there is a growing body of literature regarding practice models, the terms used to describe these vary significantly (e.g., "practice frameworks", "change programmes", and "intervention models" - Gillingham, 2018;Lwin, Versanov, Cheung, Goodman, & Andrews, 2014;Laird, Morris, Archard, & Clawson, 2018); and as such, while we developed a comprehensive set of search terms with the aim of increasing the sensitivity of the search, we may not have identified all existing models. Furthermore, the focus on studies written in English means that we may well have failed to identify evaluations of other practice models published in non-English language journals (e.g., Holmgård Sørensen, 2009;Vink, de Wolff, van Dommelen, Bartelink, & van der Veen 2017).…”