An additional measure of availability derived from theOxford English Dictionary.

In order to develop an additional measure of availability for the nouns from Paivio, Yuille, and Madigan's (1968) list, we used a CD-ROM version of theOxford English Dictionary (OED) to obtain the number of times a word was used to define other words. This variable was added to Rubin and Friendly's (1986) set of measures for these words. In multiple regression analyses, our measure proved to be a useful predictor of free recall. These results suggest that the OED may be useful for providing additional psycholinguistic measures.