Thirty‐four children ranging in age from 2,6 to 6,1 (median age 4,3) were presented with sentences for imitation which either violated or honored a prenominal adjective ordering rule which requires that size adjectives must precede color adjectives. Two response measures were evaluated in terms of these sentence types: latency to begin a sentence imitation and recall errors. For both the older and younger subjects, latencies following adjective order violations were significantly longer than following correct adjective order. This was argued to provide evidence for the existence of a perceptual strategy in noun phrase segmentation which occurs at the time the sentence is comprehended. The recall error measure indicated that a different strategy is reflected in the output phase of a sentence imitation task: this strategy was called a shift‐to‐grammatical‐output. Older subjects were found to employ this latter strategy whereas the younger subjects did not employ it. These results were interpreted both in terms of Bever's developmental theory of prenominal adjective ordering acquisition and the empirical work of Martin and Molfese. Finally, these results were related to a more general developmental theory suggested by a pragmatic communication interpretation of adjective ordering due to the work of Danks, Glucksberg, and Schwenk.