| http://www.w3.org/ns/prov#value | - Furthermore, academic tasks such as math, reading, spelling, history, and language have been successfully improved using token systems (Lannie & Martens, 2004; Truchlicka et al., 1998) as well as social skills, such as sportsmanship and class participation (Boniecki & Moore, 2003; Hupp & Reitman, 1999).
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