Adaptations françaises des versions courtes des inventaires du développement communicatif de MacArthur-Bates

French adaptations of short versions of MacArthur-Bates communicative inven - tories This study investigates early language acquisition in French-acquiring children at 12, 18 and 24 months in four French-speaking countries. Three short parental reports designed to assess young children's communicative gestures, receptive and productive vocabulary as well as grammar emer- gence were created and administered to 400 mothers. This study describes the questionnaires, their development, gives information about data collection and presents norming data according to age and sex of evaluated children.