The following study measures the impact of consistent and sustained oral interaction with native speakers of the target language via remote interaction on macro-linguistic skills of adult learners studying Spanish as a second language at intermediate stages of acquisition. This investigation overcomes deficiencies in previous and current research that focuses primarily on individual learners, acquisition of one grammar point or the use of specific micro-behaviors, as opposed to looking holistically at the impact that interaction with native speakers of the target language has on learners' reading, writing, speaking and listening skills at intermediate stages of acquisition. Participants of this study belonged to either the TalkAbroad-7 group (TA-7G) or the TalkAbroad-2 group (TA-2G). Using the Avant Stamp Test, learners' macro-language skills (i.e., reading, writing, listening and speaking) were quantitatively measured before and after treatment, following a pre/posttest design. Results of the data suggest that consistent and sustained oral interaction with native speakers of the target language significantly impacted learners' listening skills, while also contributing to the development of other macro-linguistic skills. The pedagogical implications of our research, combined with those available in earlier investigations, suggest that a greater focus be placed on listening tasks that build learners' aural skills. Educators and administrators alike should consider curricular changes that require learners to use interactive programs that allow them (i.e., learners) to engage in consistent and sustained oral interaction with NSTL in order to cultivate this fundamental ability.