“…Social self‐concept was assessed using the Dutch version of the Self‐Perception Profile for Children (SPPC; Harter, ; Dutch translation by Veerman, Straathof, Treffers, Van den Bergh, & ten Brink, ), adapted for children from age 7 onward(Leflot, Onghena, & Colpin, ). Evidence for construct validity and adequate reliability was found (Leflot, Onghena, et al., ). The subscale social acceptance was rated on a 3‐point Likert scale (“Most children like me,” “Find it easy to make friends”; 6 items; αs = .62–.76).…”