Monolingual and bilingual children’s understanding of Moore-paradox sentences

Research of the theory of mind (ToM) has long been a central topic in cognitive science and experimental philosophy. A preliminary example of a Moore-paradox sentence would be: It is raining, but I don’t think it is. Understanding the paradoxes in these sentences is considered part of ToM development. This study focuses on the recognition of Moore’s paradoxical sentences by monolingual and bilingual children. According to the first hypothesis, comprehension of Moore-paradoxical sentences is estimated to start at the age of 7. The second hypothesis assumes that balanced bilingual children develop the ability to understand Moore-paradoxical sentences earlier than Hungarian dominant bilinguals, and balanced bilinguals also outperform their monolingual peers. Romanian monolingual and Hungarian-Romanian bilingual children aged between 5 and 8 (N = 134) participated in the experiment. Balanced and dominant bilingual groups were established based on a questionnaire filled in by the children’s parents. During the experiment, children had to listen to a number of sentences. Each sentence that contained paradoxical statements had control sentences matching syntactically. Children had to choose the sentences they thought to be “silly”. According to the experimental findings, 5- and 6-year-old children performed poorly while the overwhelming majority of 7- and 8-year-olds could select the Moore-paradoxical sentences. There were differences between the performance of monolingual and balanced bilingual groups and between the two bilingual groups. Balanced bilinguals performed better, and their comprehension of understanding Moorean sentences developed earlier than those of the other groups.