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Which Slovak researcher's 1974 work led to recognition of dyscalculia?

ALadislav Košč
BJean Piaget
CLev Vygotsky
DB.F. Skinner
Answer & Solution
Correct answer: A. Ladislav Košč
1. Dyscalculia was recognised in 1974 through the work of Ladislav Košč. 2. Piaget, Vygotsky and Skinner studied other areas. 3. So Košč is correct. _Source: Wikipedia, Dyscalculia, History_
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