Objective age of acquisition norms for a set of 328 words in Spanish.

Age of acquisition is one of the most important variables in picture naming. For this reason, a large number of findings concerning age-of-acquisition data have been published in recent years in a number of different languages. In this article, objective age-of-acquisition data in Spanish for 328 pictures were collected from a pool of 760 children, half of whom were boys and the other half girls. A total of 246 pictures were selected from the Snodgrass and Vanderwart (1980) set, and 82 were new pictures. Like the results of other studies, we found that objective age of acquisition correlates less than rated age of acquisition with familiarity and frequency, which indicates that the objective measure is less contaminated by other variables than are rated estimates. A very high correlation was obtained between the norms from this study and those published in English, French, Icelandic, and Italian. These norms will be very useful to Spanish psycholinguists and clinicians. Related materials may be downloaded from the Psychonomic Society Web archive at www.psychonomic.org/archive/.