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An experimental design was adopted in the present study to cross-compare the effect of two formative assessments, namely peer assessment (PA) and teacher assessment (TA), with summative assessment (SA) on the improvement of language learners’ writing skill and self-efficacy. Writing excellence was operationalized by structural (grammar), lexical (word choice), and discoursal (cohesion and coherence) well-formedness. Furthermore, focused group interview was run to elicit the learners' attitudes and preferences toward type of assessment. Three cohorts of proficiency-matched language learners sat for a semester-long experimentation (20 sessions × 90 min = 30 h) and three testing sessions. The results revealed that PA group significantly improved in the writing skill, but TA and SA groups did not. Self-efficacy was not enhanced in any of the assessment groups under study. The interviews and follow-up member checkings indicated that the pupils did not have positive attitudes toward PA and preferred TA. Among the sources of this disfavor, they referred to misunderstanding, lack of knowledge or attention, tiredness, poor handwriting of the assesse, shyness, friendship bias, and even feeling not qualified enough to judge their peers’ tasks. Overall, then, the study reported a mismatch between the students’ actual performance and attitudinal beliefs under different assessment conditions, implying that (a) Iranian students are more inclined toward teacher-dominated pedagogies and (b) triangulation of assessment modes provides more reliable optimal results. 相似文献
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This paper proposes a pursuit formation control scheme for a network of double-integrator mobile agents based on a vector field approach. In a leaderless architecture, each agent pursues another one via a cyclic topology to achieve a regular polygon formation. On the other hand, the agents are exposed to a rotational vector field such that they rotate around the vector field centroid, while they keep the regular polygon formation. The main problem of existing approaches in the literature for cyclic pursuit of double-integrator multiagent systems is that under those approaches, the swarm angular velocity and centroid are not controllable based on missions and agents capabilities. However, by employing the proposed vector field approach in this paper, while keeping a regular polygon formation, the swarm angular velocity and centroid can be determined arbitrary. The obtained results can be extended to achieve elliptical formations with cyclic pursuit as well. Simulation results for a team of eight mobile agents verify the accuracy of the proposed control scheme. 相似文献
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Farzaneh Hemmasi 《Popular Communication》2017,15(3):192-206
ABSTRACTThis article traces the transformation of an Iranian nationalist poem by Simin Behbahani entitled “I Will Rebuild You, Homeland” (1981) into an expatriate national anthem, and the poem-song’s subsequent incorporation into protests and political speeches by individuals and groups in and outside of Iran. Employing musical and textual analysis, interviews, and a transnational perspective on cultural circulation and reception, I show how exile pop singer Dariush Eghbali’s adaptation of the original poem mobilized the text and opened it to audience participation. The article argues that the poem and its musical–textual permutations exemplify contemporary Iranian practices of national identification in which conflicting parties attempt to motivate “the Iranian people” to political ends. As actors from around the world and across the political spectrum repeatedly turn to nationalist poetry, song, anthem, and political speech, we observe how mass-mediated popular culture reveals ongoing recourse to nationalist forms even in transnational space. 相似文献
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