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Showing 1 to 20 of 32 for “"Mantel Haenszel"”.
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A Conceptual Framework for Investigating Test Item Performance With the Mantel-Haenszel Procedure
Standardized tests are frequently used to assess the educational achievement of students in specific content areas (e.g., reading comprehension or mathematics). However, standardized tests have been highly criticized as unfair with little scientific objectivity when assessing the performance of …
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Differential Item Functioning and Opportunity to Learn: Adjusting the Mantel-Haenszel Chi-Square Procedure
Test fairness is an omnipresent educational and political issue. The validity of a test is in question whenever any group feels its members are not being treated exactly like everyone else. Differential item functioning (DIF) refers to a test item that does not perform the same way for two groups …
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An empirical investigation of the robustness of the Mantel-Haenszel procedure and sources of differential item functioning
… empirically evaluate the reasonableness of the Mantel-Haenszel procedure used to appraise differential item functioning or item bias and to investigate item characteristics which results in differential performance for the gender and ethnicity comparison.
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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
… sample sizes on statistical power of SIBTEST and Mantel-Haenszel procedures for detection of DIF of moderate and large magnitudes. Item parameters were estimated by, and generated with the 2PLM using WinGen2 (Han, 2006). MULTISIM was used to simulate ability estimates and to generate response data …
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Modeling and Measuring Association for Ordinal Data
… ratios as the common odds ratio and modify the Mantel-Haenszel estimator of common odds ratio in a K x K ordinal contingency table where the category numbers of the variables are the same. The M[superscript2] statistic with scoring systems is also introduced. From the simulation results, we …
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Extubación temprana en cirugía cardiaca pediátrica
… y el ajustado con un análisis estratificado de Mantel Haenszel. Al ajustar por categoría de RACHS-1, esta asociación permanece, pero no hubo diferencia estadísticamente significativa. RR combinado (Mantel Haenszel) = 1.27 -IC 95% (0.86 1.86)-. Conclusiones: la extubación en salas, tras …
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An evaluation of item response theory for detecting differential item functioning of examinees' responses to the seventh grade mathematics MEAP test investigating learner characteristics /
… DIF between gender and race which used the Mantel-Haenszel test statistic and the three parameters logistical model. Both techniques detected DIF but not for the same test items. The Mantel-Haenszel was an easier statistical method to use, with approximately 23 (20%) of the test items …
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Meta-Analysis of Open vs Closed Surgery of Mandibular Condyle Fractures
… for fixed and random effects as well as the Mantel-Haenszel method for fixed effects. Some of the outcome variables were found to be statistically significant but were interpreted with caution because of the poor quality of the studies assessed. There is a need for more standardized data …
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Guidelines for the interpretation of NCDIF as an effect size measure
… 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 various conditions of uniform and non-uniform DIF, as well as the effect that the …
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Trombosis asociada a cateter venoso central en pediatría de la Fundación Cardioinfantil julio 2013 a julio 2015
… medidas de asociación utilizando el estadístico mantel haenszel. Resultados: En total se incluyeron 221 pacientes. La prevalencia de la trombosis y uso del catéter fue del 22%. La edad inferior a los 36 meses (OR 2,27 IC95% 1,16-4,44,p<0.001), profilaxis antitrombótica (OR 34,4 IC95% 4,18-282,92, …
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Aceptación de un sello de calidad para verduras frescas por parte de los consumidores del Partido de General Pueyrredon
… Las pruebas estadísticas de Cochran, de Mantel-Haenszel y de Kruskal-Wallis fueron aplicadas a fin de explorar la posibilidad de aceptación de un sello de calidad por parte de los consumidores y la información relevante que esperan encontrar en el mismo, estratificando por nivel de barrio …
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Differential Item Functioning on the Armed Services Vocational Aptitude Battery
… crossed gender and ethnicity variables. Both the Mantel-Haenszel procedure and an IRT area-based technique were utilized to assess the degree of uniform and non-uniform DIF in a sample of ASVAB takers. The analysis was performed such that each subgroup of interest functioned as the focal group to …
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Gender and Ethnicity-Based Differential Item Functioning on the Myers-Briggs Type Indicator
… the data for the present experiment. The Mantel-Haenszel procedure and an IRT-based area technique were the methods of DIF-detection. Results showed several biased items on all scales for all comparisons. Ethnicitybased bias was seen in the white male vs. black female and white male vs. …
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Riesgo asociado a la cirugía cardíaca mayor en pacientes octogenarios : una revisión sistemática de la literatura.
… Los resultados se analizaron en un modelo de Mantel-Haenszel. Resultados: La búsqueda arrojó un total de 8.565 publicaciones. Los datos analizados en el modelo incluyeron 81.547 pacientes (7.855 octogenarios y 73.692 más jóvenes). El riesgo de mortalidad asociado a cirugía cardíaca en …
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Towards establishing the equivalence of the English version of the verbal analogies scale of the Woodcock Munuz Language Survey across English and Xhosa first language speakers
… and construct bias statistical techniques. The Mantel-Haenszel DIF detection method was employed to detect DIF, while construct equivalence was examined by means of exploratory factor analysis (EFA) utilising an a priori two-factor structure. The Tucker's phi coefficient was used to assess the …
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The Association Between Eating Habits and Hypertension Among African American Women Compared to Other Women
… loss, and physical activity level. The Cochran Mantel Haenszel (CMH) statistic and logistic regression were used to determine the magnitude of the association of study variables with the outcome. Results: African American women were more likely to have hypertension than White and Mexican …
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Nutrition Support and Newborn Screening in the NICU Population: Is There a Link?
… exact test, Chi-square test, and the Cochran-Mantel-Haenszel test. Results: Nutrition type was significantly associated with newborn screening (p<0.001); those who received parenteral nutrition were more likely to have a false-positive. For infants who also received PN, EN of breast milk …
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Use of Analgesics in Postoperative Pain Control by Board Certified Pediatric Dentists
… The survey was available on-line for 3 months. Mantel-Haenszel and chi-square tests were used to check the relationships of hours of patient care, years of experience, and region of the country with other items in the survey. Results: Responses were received from 210 (27%). The region …
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Cone Beam Computerized Tomography Analysis of Haller cell : Prevalence and Clinical Significance.
… <p><strong> </strong>Chi-square and Cochran-Mantel-Haenszel tests were used for statistical analysis and P-values >0.05 were considered to be statistically significant.</p> <p><strong>Results</strong></p> <p>Out of 50 patients HC were in 30 patients (60%) 17 were bilateral 13 unilateral. HC …
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