نتایج جستجو برای: squared effect size for lr dif
تعداد نتایج: 11228050 فیلتر نتایج به سال:
Abstract We investigated the potential impact of differential item functioning (DIF) on group-level mean and standard deviation estimates using empirical simulated data in context large-scale assessment. For investigation, PISA 2018 cognitive domains (Reading, Mathematics, Science) were analyzed Jackknife sampling to explore DIF country scores their errors. found that countries have a large num...
heuristics are often used to provide solutions for flow shop scheduling problems.the performance of a heuristic is usually judged by comparing solutions and run times on test cases.this investigation proposes an analytical alternative ,called asymptotic convergence ,which tests the convergence of the heuristic to a lower bound as problem size grows. the test is a stronger variation of worst cas...
today, the route for economic development in most countries is the same as international open competitive economy. economic institutes well known that supportive public economy belonged on the past and they may compete in the global economy. it is obvious that if they have no competitive potency or not familiar with competition technique, they may be devastated. banking system aims to collect t...
this study aimed at investigating differential item functioning (dif) on the special english test of the iranian national university entrance exam (inuee). the effect of gender and subject area was taken into account. the study utilized one-parameter irt model with a sample of 36000 students who sat for the inuee special english test in 2004 and/or 2005. the findings confirmed the presence of d...
in this study, a simple, rapid and selective method was developed for the determination of dexamethasone. the proposed method is based on inhibitory effect of dexamethasone on the oxidation of orange-g by bromate in sulfuric acid media. the reaction was followed spectrophotometrically at 478.5 nm (?max). under optimum experimental conditions, (72.6 ?mol l-1 of orange-g, 0.76 mol l-1 of h2so4, 0...
Based on the sample of serial M&A Chinese listed companies from 2010–2019, this paper intends to investigate impact innovation performance and financing constraints digital inclusive finance (DIF). The empirical results show that an inverted U-shaped relationship exists between first goes up then down. mechanism analysis play a mediating role in performance, while DIF plays moderating effec...
The aim of this study was to determine whether the items from a reading comprehension test in European Portuguese function differently across students from rural and urban areas, which biases the test validity and the equity in assessment. The sample was composed of 653 students from second, third and fourth grades. The presence of differential item functioning (DIF) was analysed using logistic...
Difenoconazole (DIF) is a representative variety of broad-spectrum triazole fungicides and liposoluble pesticides. However, the water solubility DIF so poor that its application limited in plant protection. In addition, conventional formulations always contain abundant organic solvents, which may cause pollution environment. this study, two DIF/cyclodextrins (CDs) inclusion complexes (ICs) were...
BACKGROUND Short scales are typically used in the social, behavioural and health sciences. This is relevant since test length can influence whether items showing DIF are correctly flagged. This paper compares the relative effectiveness of discriminant logistic regression (DLR) and IRTLRDIF for detecting DIF in polytomous short tests. METHOD A simulation study was designed. Test length, sample...
This study aimed at investigating differential item functioning (DIF) on the Special English Test of the Iranian National University Entrance Exam (INUEE). The effect of gender and subject area was taken into account. The study utilized one-parameter IRT model with a sample of 36000 students who sat for the INUEE Special English Test in 2004 and/or 2005. The findings confirmed the presence of D...
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