“…Most intervention programs for gifted students have focused on academic outcomes or cognitive variables (Memmert, 2006;Kuo et al, 2010;Welter et al, 2018); only a small number have focused on psychosocial aspects (Neihart, 2007). Enrichment programs can improve not only students' academic performance (Aljughaiman, 2011;Golle et al, 2018) or motivation (Gubbels et al, 2014) but also their self-concept (Feldhusen et al, 1990;Gubbels et al, 2014), same-sex and opposite-sex relationships (Rinn, 2006), and interpersonal problem solving (Martin-Lobo et al, 2018). They have been shown to be effective in both primary (e.g., Feldhusen et al, 1990;Gubbels et al, 2014;Kim, 2016;Martin-Lobo et al, 2018) and secondary schools (e.g., Rinn, 2006;Aljughaiman, 2011;Fraleigh-Lohrfink et al, 2013;Sastre-Riba, 2013;Singh, 2013).…”