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Análise Psicológica

Print version ISSN 0870-8231On-line version ISSN 1646-6020

Abstract

LOURENCO, Orlando. Children’s understanding of the idea of logical necessity: The effect of counter-suggestions. Aná. Psicológica [online]. 2019, vol.37, n.3, pp.249-268. ISSN 0870-8231.  http://dx.doi.org/10.14417/ap.1576.

This study examined the child’s understanding of the idea of logical necessity in 40 preoperational and 40 operational children in the context of a number conservation task and a liquids conservation task. The first task followed the typical Piagetian clinical method. The second task also used this method, but it employed counter-suggestions that Piaget, in a surprising way, rarely, if ever, used in his experiments. Children’s performance on the number conservation task allowed us, in a pre-experimental phase, to classify those children, aged between 5 and 7 years, as preoperational (40) or operational (40). Results show that: (1) from the number conservation task to the liquids conversation task, there was a significant change in preoperational and operational children’s epistemic status and its corresponding idea of logical necessity; (2) children refused a non-justified counter-suggestion coming from a putative knowledgeable adult less than a justified contra-suggestion coming from a hypothetical child; (3) operational children often invoked the identity argument on both tasks and the reversibility argument was practically absent; (4) children invoked the compensation argument on the liquids conservation task more than on the number conservation task.

Keywords : Piaget; Children; Counter-suggestions; Logical necessity; Operational arguments.

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