An Interactionist Dynamic Assessment of Essay Writing via Google Docs A Case of Three Iranian EFL University Students

The present case study sought to investigate the application of dynamic assessment to an EFL writing context. It primarily aimed to understand the effectiveness of an interactionist dynamic assessment procedure through a web-based application in enhancing argumentative essay writing skill at the university level. The three participants of the study received mediational interactions in five consecutive sessions in an online environment where they revised their written drafts in a joint activity with the mediator. The analysis of the mediator-learner dyadic interactions uncovered traces of microgenetic development in the learners. Also, checking the frequency distribution of implicit and explicit prompts as well as the degree of learner responsiveness over the sessions showed a substantial change in the degree of autonomy and self-regulation in the learners. Ultimately, the participants were able to successfully transfer the learned materials from DA sessions to the transfer task. The study, after all, proved the efficacy of online interactionist dynamic assessment in the development and self-regulation of learners in argumentative essay writing skill.