Developmental changes in verbal responses to systematic variations in linguistic contexts contrast with the data reported in the syntagmaticparadigmatic shift studies. The present study indicates a protracted developmental shift extending from five years of age beyond nine years of age. Apparently the first priority is to create a linguistic context when none is given; once a linguistic context is realized, semantic-syntactic equivalences have priority, followed by differentiation and then integration.[*] We thank Diane Muma for her pilot studies in originally developing the tasks and for her ideas for analysing the response patterns over the eight replications of each context. We thank Southern Illinois University for producing Tables 2, 3 and 4.