Diagnostic Assessment

Listening comprehension is a challenging skill in EFL contexts and it is necessary to research various aspects of this skill. Therefore, this study tried to investigate EFL learners’ progress on two types of listening comprehension items, receptive-response and productive-response, through diagnostic assessment (DIA) and dynamic assessment (DA). To do this, a Nelson proficiency test was administered among 120 EFL students in six classes, out of which, 90 students whose scores were in the acceptable range were selected. The classes were then randomly divided into three groups of control, DIA, and DA. As the pretest, a KET listening test in two sections of receptive-response and productive-response items was used to check the learners’ initial performance. Next, as for the treatment, in the DIA group, the learners took four listening tests with receptive-response and productive-response items in the form of test-feedback; in the DA group, the learners took the same four tests in the form of test-mediation-retest, and in the control group, the learners practiced receptive-response and productive-response items after each listening activity. At the end of the study, another KET listening test in two sections of receptive-response and productive-response items was administered to the participants to investigate the three groups’ progress from pretest to posttest. Finally, two repeated-measures two-way ANOVAs and one MANOVA were run, and the results showed that both DIA and DA resulted in significant improvements in the learners’ performance on both receptive-response and productive-response listening items; however, the difference between the two types of assessment was not significant.

Despite growing interest in diagnostic assessment tools in second language writing, limited empirical research has addressed their development for EFL contexts. Responding to this need, this study aimed to develop and validate a diagnostic-oriented rating scale designed to deliver targeted feedback on Iranian EFL learners’ academic writing. Using a mixed-methods approach, essential descriptors reflecting core writing skills were identified through think-aloud protocols and expert feedback, followed by quantitative analyses to ensure reliability and validity. The findings indicate that the 21 empirically derived descriptors capture essential aspects of academic writing—content fulfillment, organizational knowledge, and language use—enabling instructors to assess learner proficiency with greater precision. The scale’s validation process, including inter-rater reliability, content validity, and criterion-related validity checks, supports its effectiveness as a diagnostic tool closely aligned with expert evaluations. This tool is a valuable resource for both large-scale assessments and classroom applications, supporting a learner-centered approach and empowering students to address specific writing challenges.