“…It was evident from all the studies that intelligence assessment instruments administered to South African school learners from diverse, demographic populations need to be applicable to that particular population subgroup, in order to be valid, reliable, and fair (Levert and Jansen, 2001;Reid et al, 2002;Jinabhai et al, 2004;De Beer, 2005;Jansen and Greenop, 2008;Ferrett, 2011;Teixeira, 2011;Mawila, 2012;Van Wyhe, 2012;Shuttleworth-Edwards et al, 2013;August, 2017;Mitchell et al, 2018). When administering imported western-developed intelligence instruments to South African school learners, appropriate and updated norms need to be applied, based on continuous normative studies conducted on an equivalent population group and within a similar context as the testees (Ferrett, 2011;Van Wyhe, 2012;Shuttleworth-Edwards et al, 2013;August, 2017).…”