“…In general, intervention studies for preschoolers in the context of self-regulation differ concerning a) the measurement of intervention success, either measuring benefits only at the child-level (Schmitt, McClelland, Tominey, & Acock, 2015) or via external ratings (Dörr & Perels, 2019a); b) the type of fostering through direct interventions at the child level (Barnett et al, 2008;Schmitt et al, 2015) or through indirect interventions which focus on the promotion of potential multipliers, such as kindergarten teachers (see also next section; Bradley, Atkinson, Tomasino, Rees & Galvin, 2009;Ford, McDougall, & Evans, 2009;Venitz & Perels, 2019); and c) the general stimulation of self-regulation (Raver et al, 2011), compared to specific self-regulation strategies/aspects such as self-reflection (Espinet, Anderson, & Zelazo, 2013;Flook, Goldberg, Pinger, & Davidson, 2015) or metacognition (Dörr & Perels, 2019a). However, most of the literature in this age group has tapped into gSR, and less so on SRL (e.g.…”