“…A wide range of studies have not only corroborated the BFLPE, but also found this positive relation of self-concept with achievement in mathematics and science (e.g., Antunes & Fontaine, 2013;Cvencek, Kapur, & Meltzoff, 2015;Jansen, Schroeders, & Lüdtke, 2014;Lee & Kung, 2018;Ma & Kishor, 1997;Sahranavard, Hassan, Elias, & Abdullah, 2012;Wang, Oliver, & Staver, 2008). Guided by this theoretical framework, Höffler et al (2017) and Chang and Lin (2017) found that also within a science Olympiad reference framework, participants' academic self-concept was significantly correlated with their academic achievement. 6.4.2 | Expectancy-value theory of achievement motivation Eccles et al's (1983) expectancy-value theory of achievement motivation aims to explain the mechanism behind choices and achievements, which allows for systematic analysis of concepts underlying decision-making (Eccles, 1994(Eccles, , 2005Wigfield & Eccles, 2000).…”