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te Nijenhuis, Jan; Murphy, Raegan; van Eeden, Rene – Intelligence, 2011
This is a study of secular score gains in South Africa. The findings are based on representative samples from datasets utilized in norm studies of popular mainstream intelligence batteries such as the WAIS as well as widely used test batteries which were locally developed and normed in South Africa. Flynn effects were computed in three ways.…
Descriptors: Intelligence Quotient, Intelligence Tests, Scores, Change