“…The heterogeneity in results between studies is substantial (Østergård et al, 2018). Some studies have reported null-findings (e.g., Davidsen et al, 2017; Hansson, Rundberg, Österling, Öjehagen, & Berglund, 2013; Rise, Eriksen, Grimstad, & Steinsbekk, 2016) and others, indications of adverse effects of ROM (de Jong, Segaar, Ingenhoven, van Busschbach, & Timman, 2018; Errázuriz & Zilcha-Mano, 2018; van Oenen et al, 2016). The mixed findings highlight the need for a more nuanced understanding of how the process works, a question which, to date, has received limited research attention (Wampold, 2015).…”