“…The clear advantages of an experimental design raise the question as to why experimental studies on key processes in AN are so scarce (e.g., Glashouwer, van der Veer, Adipatria, de Jong, & Vocks, 2019). For example, when examining the scientific literature over the last 5 years, only eight studies were published in which an experimental design was used in an AN sample (between-subjects designs, as in Figure 1: Hartmann, Thomas, Greenberg, Rosenfield, & Wilhelm, 2015;Loeber et al, 2016;Naumann, Tuschen-Caffier, Voderholzer, Schäfer, & Svaldi, 2016;Turton, Cardi, Treasure, & Hirsch, 2018;Preis et al, 2020; within-subjects designs: Cardi, Esposito, Clarke, Schifano, & Treasure, 2015;Svaldi et al, 2016;Leppanen et al, 2017]. 1 At least three important obstacles exist for performing experimental studies in AN.…”