[EN] This chapter presents two experimental studies carried out to test five year-olds’ and adults’ comprehension of quantification and of gram- matical aspect in Iberian Spanish in conditions which require the generation of a scalar implicature (pragmatic conditions) and in con- ditions that do not require it (semantic conditions). Results confirmed that children’s performance is less adult-like in conditions which re- quire pragmatic reasoning than in conditions that involve semantic knowledge (Noveck, 2004). Within the variability observed among the children in their perfomance in the two tasks, three different pro- files can be distinguished: 1) children who derived implicatures with both quantification and aspect, 2) those who could only derive im- plicatures with one type of scale and (3) those who did not derive an implicature with any of the two types of scales analyzed. These re- sults point towards a gradual acquisition of scalar implicatures which depends on the alternatives of a certain scale available to the child, in line with Barner et al., (2011).

El apoyo institucional del Gobierno Vasco (IT-676-13), el Ministerio de Economía y Competitividad-Ministerio de Ciencia e Innovación (FFI2012-37884-C03-02 y la Universidad del País Vasco-Euskal Herriko Unibertsitatea (UPV/EHU) (UFI11/06) ha supuesto una gran ayuda para el desarrollo del presente proyecto.