Spanish rhotic acquisition in semester-long study-abroad and at-home contexts

Abstract The present study compares the L2 acquisition of Spanish rhotics (intervocalic taps /ɾ/ and trills /r/) by 16 semester-long study-abroad (SA) participants and 7 at-home (AH) peers using an experimental production task. Data collected at three different time points (pre-/mid-/post-semester) suggest an advantage of study-abroad in the acquisition of trills containing multiple occlusions. Participants at all proficiency levels showed significant movement towards multiple-occlusion trills throughout the semester. Intensity of contact with Spanish interacted with proficiency, enhancing gains at certain levels. Results indicate that segment duration can also serve as a useful phonemic contrast. While both the SA and AH groups significantly increased trill segment duration over time, only the SA group sustained the increase from mid- to post-semester. These findings have theoretical and pedagogical implications for the acquisition of L2 phonetic categories and phonemic distinctions that differ from the L1.