Group Dynamic Assessment

This study aimed to examine the impact of Group Dynamic Assessment (G-DA) on the listening comprehension of Iranian intermediate EFL learners. To this purpose, through the Preliminary English Test (PET) 140 Iranian EFL female learners in four English Language Institutes of Ahvaz, Iran, were tested, and 80 of them were selected as the sample of the study using convenience sampling. They were taught through group dynamic assessment. After the pretest and treatment sessions, the participants were given the listening comprehension post-test and the resultant scores were statistically analyzed to detect their development from pretest to post-test. The obtained results revealed that Group Dynamic Assessment (G-DA) had a positive impact on the participants’ listening comprehension. This finding implies that EFL teachers may need to consider the positive impact of dynamic assessment on EFL learners’ listening comprehension improvement and provide them with more opportunities to interact. They may also need to create a change in the traditional models of listening comprehension assessment which emphasize psychometric quantification of students' performances

Theoretically drawing on Vygotsky’s sociocultural theory of mind (SCT) and following a sequential exploratory mixed method design, this study probed into the impact of Group Dynamic Assessment (GDA) on the short and long-term Iranian high school students’ grammar ability. Also, a focus group interview was conducted to explore students’ attitudes toward concurrent GDA. This study used a convenient sample of 42 Iranian third-grade students in a private high school who prepared to participate in the Iranian University Entrance Exam (IUEE). The students of the two groups (i.e., GDA and Non-GDA) followed the same procedure (i.e., DIALANG test, pre-test, three conventional teaching sessions and one enrichment session, focus group interview (for GDA group), post-test and transcendence test). Quantitative findings using three independent sample t-tests and two repeated measure ANOVAs revealed that the GDA group significantly outperformed the non-GDA group regarding grammar ability and could apply them in more demanding circumstances. Besides, the thematic analysis of qualitative data showed that the concurrent GDA assisted students to improve their grammar ability. The study's findings highlight the importance of applying GDA as a mediational procedure that assists students in developing their grammar ability in L2 contexts. The findings of the study may assist L2 teachers to apply GDA procedure in their classrooms to save time for teaching and assessing grammatical structures.

This study evaluated the validity of group dynamic assessment (G-DA), grounded in Vygotsky’s (1987) Sociocultural Theory, implemented in a class of intermediate learners to assess and promote L2 listening comprehension. To navigate the dual goals of assessment and instruction, flexible mediation attuned to the zone of proximal development of the learners was provided within the G-DA interactions. This led to the detection of nine mediational strategies. The validity of these G-DA interactions was explored by extending Poehner’s (2011) validation model to classroom setting. Poehner’s (2011) model includes two interrelated foci for DA validation: micro and macro-validity. Following Kane's (2021) argument-based approach to validation, evidence-based arguments were developed to explore the appropriateness of each mediational strategy given to the learners (micro-validity) as well as the success of that mediational strategy and the entire G-DA procedure in promoting learners’ L2 listening comprehension (macro-validity). Class transcripts were analyzed to gain evidence for the micro- and macro-validity of the G-DA interactions. The findings supported the usefulness of Poehner’s validation model in developing validity arguments to determine the appropriateness of the interpretations made about learners’ abilities and the effects of the G-DA procedure on their development. Moreover, the study concluded that the analysis of learners’ independent performance needed to be added to Pohener’s macro-validation model so that it becomes applicable to G-DA