“…The analysis of a learner's responses to mediation during DA can provide the mediator with further insights regarding not only what the learner is capable of performing at the moment, but also what they can perform independently in the future (Poehner, ), because according to Vygotsky (), what a learner can do with assistance today, they can perform independently tomorrow. The decrease in the frequency of the prompts and also the explicitness of mediation required by learners to perform a task over time is taken as an indication of development (Herazo et al., ; Poehner, ; Shrestha & Coffin, ). Thus, DA researchers are interested in not only measuring learners' actual scores but also learners' mediated or potential scores (e.g., Poehner & Lantolf, ; Poehner, Zhang, & Lu, ).…”