Abstract
This article presents the Afrikaans translation of an originally German diagnostic
test for early number concept development. The process of ‘importing’ a test to South Africa
by considering linguistic-, functional-, cultural and metric equivalence is outlined. A theoretical
model describes five levels of young children’s hierarchical number concept development
which collectively contribute to early mathematical understanding. The five-level hierarchical
structure has previously been confirmed by testing the theoretical model in a one-dimensional
Rasch analysis in Germany...