Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 18 of 18 for “"Focal group"”.
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Differential Item Functioning on the Armed Services Vocational Aptitude Battery
… The analysis was performed such that each subgroup of interest functioned as the focal group to be compared to the male reference group. This type of DIF analysis allowed for comparisons within ethnic group, within gender group, as well as crossed ethnic/gender group. The groups analyzed were: …
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A Case Study Exploring the Use of Evocation to Enhance the Reading Comprehension of Special Needs Students in the Fifth Grade
… artifacts, and classroom observations. The focal group consisted of three students displaying an average IQ, who had been diagnosed with a learning disability in the area of reading comprehension, and displayed one or more at-risk factors as identified by qualifying for the free or reduced …
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An Investigation of the Use and Effect of Literacy in Industrial Technology Curricula
… student interviews, and teacher interviews. The focal group consisted of nine eighth grade students chosen based on their enrollment in industrial technology courses. This study found The Parke System increased independent reading levels and reqired the application of daily literacy behaviors for …
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Predictive Modeling of Uniform Differential Item Functioning Preservation Likelihoods After Applying Disclosure Avoidance Techniques to Protect Privacy
… the data swapping rate, the reference-to-focal group ratio, the type of item scoring, and the level of DIF prior to data swapping.
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Guidelines for the interpretation of NCDIF as an effect size measure
… (squared differences of the) item score for the focal population of examinees. We first investigate in which situations the Delta Mantel-Haenszel (ΔMH) is comparable to NCDIF, so that the ETS cutoff points can serve meaningfully as a benchmark. Then, we examine the parameter’s behavior under …
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Differential Item Functioning Analysis of the Herrmann Brain Dominance Instrument
… the instrument were classified as the reference group and examinees of the International English version were classified as the focal group. Out of 105 items, 11 were manifesting a large amount of DIF and were flagged for further review. The POLYSIBTEST procedure was used to carry out the DIF …
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Effect of Unequal Sample Sizes on the Power of DIF Detection: An IRT-Based Monte Carlo Study with SIBTEST and Mantel-Haenszel Procedures
… by both M-H and SIBTEST when the reference to focal group sample size ratio was 1:.10 due to low observed statistical power and inflated Type I error rates.
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Entre a voz e o ouvido: o trabalho emocional e os impactos para a saúde dos trabalhadores do teleatendimento/telemarketing em Salvador
… thirty three interviews were carried out and a focal group formed. From the studied cases it turned out to be the population predominantly of female sex, living in quarters of low income, there is high demand of time in work organization, intense informational flow in standard time according to …
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Factors influencing the Housebreaking and Burglary among the male youths in Songea Municipality, Tanzania
… depth interviewing, observation, questionnaire, focal group discussion and documentary reviewing to collect the research data for the study. The analysis and interpretation of data used both qualitative and quantitative approaches. The results of the study showed that the social problem under …
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The Effects Of Differential Item Functioning On Predictive Bias
… with the same ability but from different subgroups. Predictive bias was defined as a difference in subgroup regression intercepts and/or slopes in predicting a criterion. Data were simulated by computer. Two hypothetical subgroups (a reference group and a focal group) were used. The predictor …
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Locomotor Ontogeny and the Evolution of Avian Flight
… during ontogeny and evolution. Using birds as a focal group, I have thus pursued two questions: (1) How does cooperative use of wings and legs help to bridge the developmental transition from an obligately-bipedal juvenile to a flight-capable adult? (2) Do tradeoffs between wing versus leg …
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Locomotor Ontogeny and the Evolution of Avian Flight
… during ontogeny and evolution. Using birds as a focal group, I have thus pursued two questions: (1) How does cooperative use of wings and legs help to bridge the developmental transition from an obligately-bipedal juvenile to a flight-capable adult? (2) Do tradeoffs between wing versus leg …
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Fine Motor Skills, Processing Speed, And White Matter Integrity Among Pediatric Brain Tumor Survivors Who Received Proton Radiotherapy
… who received PRT either via CSI (n = 33) or focally (n = 34). All participants completed a standardized neuropsychological battery and underwent MRI with DTI sequences. The focal and CSI PRT groups were compared on fine motor/processing speed outcomes and DTI metrics of white matter integrity …
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A classroom of life : a qualitative analysis of the reflections of medical students on their entry into an obstetric community of practice
… practice in reflective commentaries and a focus group interview provide the data set on which the analysis is based. Specific aspects considered are identities, roles, relationships and issues of power. Shifts in these aspects over time and the implications of these issues for curriculum change …
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Tempo geológico e o ensino de Biologia: investigando uma proposta de Sequência Didática baseada em Design Research.
… cycle, obtained through participant-observation, focal group and analysis of documents produced during the classes, evaluated by discourse analysis and analytical tool for validation of design principles, indicated that they are promising strategies for teaching Geological Time in classes of …
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The dynamics of the online wildlife trade in mammalian species on Instagram and Facebook in Indonesia
… and 16,392 individuals from the mammalian focal orders Carnivora, Dermoptera, Diprotodontia, Pholidota, and Primates were found for sale. Of this, 93.7% of the trade involved native species of Indonesia, 40.5% of trade was determined to be illegal based on Indonesian law, and 22.4% involved …
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Methods of Detecting Differential Item Functioning: A Comparison of Item Response Theory and Confirmatory Factor Analysis
… statistically differently for a reference group than for a focal group. DIF is a threat to the validity of a test, and it can lead to illegal usage of a test in situations such as employee selection. Thus, DIF has important implications for test construction and practice. This research is a …
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Gestão dos resíduos urbanos na Ilha do Sal: análise e proposta de melhoria
… Urbanos. Para validar estes resultados um grupo focal (7 técnicos) discutiu os problemas identificados e as propostas de melhoria e priorizou as medidas prioritárias a serem implementadas. As principais medidas identificadas a serem implementadas a um curto prazo foram: i) regulamentar todas as …