Testing
Sayyed Mohammad Alavi; Hossein Karami; Mohammad Hossein Kouhpaeenejad
Abstract
Measurement has been ubiquitous in all areas of education for at least a century. Various methods have been suggested to examine the fairness of education tests especially in high-stakes contexts. The present study has adopted the newly proposed ecological approach to differential item functioning (DIF) ...
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Measurement has been ubiquitous in all areas of education for at least a century. Various methods have been suggested to examine the fairness of education tests especially in high-stakes contexts. The present study has adopted the newly proposed ecological approach to differential item functioning (DIF) to investigate the fairness of the Iranian nationwide university entrance exam. To this end, the actual data from an administration of the test were obtained and analyzed through both traditional logistic regression and latent class analysis (LCA) techniques. The initial DIF analysis through logistic regression revealed that 19 items (out of 70) showed either uniform or non-uniform DIF. Further examination of the sample through LCA showed that the sample is not homogeneous. LCA class enumeration revealed that three classes can be identified in the sample. DIF analysis for separate latent classes showed that three serious differences in the number of DIF items identified in each latent class ranging from zero items in latent class 3 to 43 items in latent class 2. The inclusion of the covariates in the model also showed that latent class membership could be significantly predicted from high school GPA, field of study, and acceptance quota. It is argued that the fairness of the test might be under question. The implications of the findings for the validity of the test are discussed in detail.
Testing
Seyyed Mohammad Alavi; Mahboube Shahsavar; Mohammad Hossein Norouzi
Abstract
Computerized Dynamic Assessment (CDA), encouraged by Brown and colleagues’ graduated prompt approach, is grounded in Vygotsky’s Socio-Cultural Theory (SCT) of mind and its concept of the zone of proximal development (ZPD). It emerged to respond to the challenge of implementing DA in large ...
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Computerized Dynamic Assessment (CDA), encouraged by Brown and colleagues’ graduated prompt approach, is grounded in Vygotsky’s Socio-Cultural Theory (SCT) of mind and its concept of the zone of proximal development (ZPD). It emerged to respond to the challenge of implementing DA in large classes and to meet the psychometric properties of assessment. To this end, the present study attempted to design a unique computerized dynamic assessment tool to diagnose learners’ development of pragmatic competence, specifically their knowledge of the speech acts of apology and request. To conduct the research, a number of 60 BSc students of engineering, aged 18-24, participated in the study. They had different proficiency levels, including pre-intermediate, intermediate and upper-intermediate levels. In the course of CDA, they were provided with 30 multiple choice discourse completion tests of apology and request and they were required to choose what they would say in that specific situation. The participants received pre-established meditational hints for each of the unacceptable responses, which were arranged from the most implicit to the most explicit. Finally, to diagnose learners’ development, their test performance, including their actual score, mediated score and learning potential score (LPS), was instantly displayed. Paired samples t-test showed development in learners’ mediated score. The results of the univariate analysis of variance showed that there is no interaction between mediation and proficiency level. Teachers can use this supplementary dynamic assessment tool to diagnose learners’ development of pragmatic competence.