Various methodological concerns are specific to code-switching research; however, the modality of experimental stimuli has yet to be thoroughly investigated. This study explicitly tests if the mode of presentation does in fact affect participants’ judgments in Spanish-English code-switching using two different syntactic phenomena: (i) pronouns and lexical DPs, and (ii) wh-movement. The results are parallel, but not identical for the two modalities. We found no difference on a global level, indicating that written code-switched stimuli do not produce depressed ratings. We found a few individual differences when looking at specific structures within the two phenomena. In those cases, the aural condition enhanced the ratings of more acceptable sentences. Crucially, these differences did not affect the interpretation of the results.