“…However, Quinn and colleagues' study does not fully incorporate the SPS component of interest in the current meta-analytic review. A few other studies did include SPS intervention in their review of the effectiveness of SEL interventions, but none of them disaggregated results by types of intervention nor did they focus on preschool settings (i.e., Barnes, Smith, & Miller, 2014;Durlak, Weissberg, Dymnicki, Taylor, & Schellinger, 2011;Taylor, Oberle, Durlak, & Weissberg, 2017). None of these review studies have examined intervention effectiveness by informants (e.g., teachers and parents) although a plethora of studies have pointed out the discrepancies among various informants' reports of children's behaviour problems (e.g., Cai, Kaiser, & Hancock, 2004;Kasik & Gál, 2016;Strickland, Hopkins, & Keenan, 2012) due to variations in environmental expectations, structure, and knowledge concerning variables of interest (De Los Reyes & Kazdin, 2005;Kerr, Lunkenheimer, & Olson, 2007).…”