The aim of this study was to assess the predictive capacity of some of the most relevant cognitive skills pertaining to the academic field as measured by the Spanish Primary School Aptitude Test Battery. This psychometric tool was applied to all students who were enrolled in the final year of Early Childhood Education in the public schools of the province of Alicante and a follow-up of their academic progress was carried out when they completed Primary Education. The results obtained show (...) that medium-high and high scores in Verbal Aptitude and Numerical Aptitude tests in Early Childhood Education, can predict academic success at the end of Primary Education in instrumental subjects such as: Language and Mathematics. We have determined the importance of developing pedagogical programs that stimulate the development of these skills during Early Childhood Education, while implementing support strategies during Primary Education, for those students who present underdeveloped aptitudes in these areas. In this way, school difficulties would be prevented in the instrumental subjects that provide access to other academic areas. (shrink)