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Pub Date: |
2013-00-00 |
Pub Type(s): |
Journal Articles; Reports - Research |
Peer Reviewed: |
Yes |
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Descriptors:
Biology; Foreign Countries; Science Teachers; Protocol Analysis; Semi Structured Interviews; Scientists; Science Education; Science Instruction; Visual Literacy; Grounded Theory; Data Collection
Abstract:
In the present study, we have explored an aspect of teachers' perceptions of biology diagrams. The research was performed in Turkey. The data were gathered from 50 (25 female, 25 male) teachers of primary and secondary schools and 34 (18 female, 16 male) academic staff of different universities in Turkey. Some of the participants are science specialists and the others are non-science specialists. The data were collected in 2012. A qualitative approach was adopted. The data were collected in three steps. First, biology diagrams from the internet were collected and some (12) biology diagrams were chosen by the researchers. In the second step, these selected diagrams were shown to the teachers and academic staff. In this step the participants were asked to think aloud about what they saw when they looked at the diagrams. In the third step, semi-structured interviews were carried out in order to examine further the thoughts of the participants about what they saw in these diagrams. In our study we found there were no significant differences in responses between the science and non-science specialist teachers and academic staff. We conclude that it may be helpful to train teachers in the processes of constructing and reading diagrams. (Contains 7 tables and 7 figures.)
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Pub Date: |
2013-00-00 |
Pub Type(s): |
Journal Articles; Reports - Research |
Peer Reviewed: |
Yes |
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Descriptors:
Reading Tests; Reading Comprehension; Cognitive Processes; Models; Validity; Matrices; Protocol Analysis; Expertise; College Students; English (Second Language); Markov Processes; Monte Carlo Methods; Goodness of Fit
Abstract:
Cognitive diagnostic analyses have been advocated as methods that allow an assessment to function as a formative assessment to inform instruction. To use this approach, it is necessary to first identify the skills required for each item in the test, known as a Q-matrix. However, because the construct being tested and the underlying cognitive processes associated with it are usually not fully understood, establishing a Q-matrix, especially for an existing test, is a challenging task. This study reports the process of constructing and validating a Q-matrix for the reading comprehension section of the Michigan English Language Assessment Battery (MELAB). An initial Q-matrix was first generated based on evidence gathered from related literature, students' think-aloud protocols, and expert ratings. This initial Q-matrix was then validated empirically by applying the fusion model to a large MELAB data set. A well-supported Q-matrix was produced for potential future diagnostic applications. (Contains 10 tables and 4 figures.)
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Pub Date: |
2013-00-00 |
Pub Type(s): |
Journal Articles; Reports - Research |
Peer Reviewed: |
Yes |
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Descriptors:
Scores; Validity; Cognitive Tests; Diagnostic Tests; Test Items; Goodness of Fit; Statistical Analysis; Hypothesis Testing; Graduate Students; Protocol Analysis; Interviews; Foreign Countries
Abstract:
The goal of this study was to investigate the usefulness of person-fit analysis in validating student score inferences in a cognitive diagnostic assessment. In this study, a two-stage procedure was used to evaluate person fit for a diagnostic test in the domain of statistical hypothesis testing. In the first stage, the person-fit statistic, the hierarchy consistency index (HCI; Cui, 2007; Cui & Leighton, 2009), was used to identify the misfitting student item-score vectors. In the second stage, students' verbal reports were collected to provide additional information about students' response processes so as to reveal the actual causes of misfits. This two-stage procedure helped to identify the misfits of item-score vectors to the cognitive model used in the design and analysis of the diagnostic test, and to discover the reasons of misfits so that students' problem-solving strategies were better understood and their performances were interpreted in a more meaningful way. (Contains 3 tables and 1 figure.)
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Author(s): |
McCulloch, Sharon |
Source: |
Journal of English for Academic Purposes, v12 n2 p136-147 Jun 2013 |
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Pub Date: |
2013-06-00 |
Pub Type(s): |
Journal Articles; Reports - Research |
Peer Reviewed: |
Yes |
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Descriptors:
English (Second Language); Foreign Countries; Protocol Analysis; Inferences; Writing Skills; Second Language Learning; Academic Discourse; Case Studies; Citations (References); Graduate Students; Doctoral Dissertations; Reading Processes; Writing Processes
Abstract:
Existing studies of source use in academic student writing tend to i), focus more on the writing than the reading end of the reading-to-write continuum and ii), involve the use of insufficiently "naturalistic" writing tasks. Thus, in order to explore the potential of an alternative approach, this paper describes an exploratory case study concerning the ways source material was used by two L2 MA students while involved in a real-life reading-to-write task. Think-aloud sessions were conducted with students at a UK university as they read to write during the dissertation component of their programme. Analysis of the resulting protocols revealed that they engaged with their source material in qualitatively different ways, in both the frequency and range of their reading-to-write behaviours. Specifically, the students differed in the ways they responded to their sources as they read, the ways they elaborated on what they read and drew inferences, and the extent to which they showed intertextual awareness. The findings suggest that, for these writers, the process of "using" source material begins early in the reading-to-write process and involves more complex interactions with sources than may be suggested by the use of "one-shot" reading-to-write tasks of the type used in much reading-to-write research. (Contains 7 tables.)
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Pub Date: |
2013-05-00 |
Pub Type(s): |
Journal Articles; Reports - Research |
Peer Reviewed: |
Yes |
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Descriptors:
Intervention; Augmentative and Alternative Communication; Expressive Language; Delayed Speech; Program Implementation; Severe Disabilities; Developmental Disabilities; Developmental Delays; Assistive Technology; Agency Cooperation; Partnerships in Education; Pretests Posttests; Interviews; Participant Satisfaction; Protocol Analysis; Protocol Materials; Speech Language Pathology; Program Effectiveness; Grade 2
Abstract:
This study grew from a need identified by professionals working in the same community to explore interagency support for augmentative and alternative communication device implementation with students, families, and professionals involving the local school system and university. A case study was used to document intervention with a second-grade student who had developmental and severe expressive language delays. Based on the collaboration that was initiated between university and school corporation during the device acquisition process, it was determined that an interagency support system for this student would provide the best long-term solution for training, implementation, and maintenance related to her device. The participant's intervention progress before and after intervention was described using tests and video interactions. Interviews with the principal collaborators (two speech and language pathologists) and the parent were conducted post intervention. Findings revealed positive changes in performance on the receptive and expressive vocabulary testing and scores on communication functions used based on video analyses before and after intervention. Spontaneous device use at home and school was, however, limited. As the study represented one case, no further statistical analysis was conducted. Finally, some reflections on the process were provided by the two main interagency collaborators as well as the mother of the participant, and implications for future intervention were discussed. (Contains 1 table and 1 figure.)
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