Results 31 to 40 of about 36,685 (265)
equateIRT: An R Package for IRT Test Equating
Journal of Statistical Software, 2015 The R package equateIRT implements item response theory (IRT) methods for equating different forms composed of dichotomous items. In particular, the IRT models included are the three-parameter logistic model, the two-parameter logistic model, the one ...
Michela Battauz
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On reducing a system of equations to a single equation
Proceedings of the 2004 international symposium on Symbolic and algebraic computation, 2004 For a system of polynomial equations over Q_p we present an efficient construction of a single polynomial of quite small degree whose zero set over Q_p coincides with the zero set over Q_p of the original system. We also show that the polynomial has some other attractive features such as low additive and straight-line complexity.<br /> <br ...
Gudmund Skovbjerg Frandsen +1 more
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Frontiers in Psychology, 2019 The increasing digitalization in the field of psychological and educational testing opens up new opportunities to innovate assessments in many respects (e.g., new item formats, flexible test assembly, efficient data handling). In particular, computerized
Sebastian Born +4 more
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Comparison of several small sample equating methods under the NEAT design
Turkish Journal of Education, 2016 The aim of this study is to compare the performances of Identity, Nominal Weights Mean, and Circle-Arc equating methods under the Non-Equivalent Groups Anchor-Test (NEAT) design.
Serdar Caglak
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Proceedings of the National Academy of Sciences, 1957 Beweis zweier Sätze, die gestatten, auf die Stetigkeit der Lösungen parabolischer (elliptischer) Differentialgleichungen zu schließen, wenn die Lösung für \(t=0\) (auf dem Rande) beschränkt sein soll.
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TEFLIN Journal, 2019 This explorative-descriptive study set out to examine the equivalence among Test of English Proficiency (TOEP) forms, developed by the Indonesian Testing Service Centre (ITSC) and co-founded by The Association for The Teaching of English as a Foreign ...
Suwarsih Madya +4 more
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On a Diophantine Equation [PDF]
Journal of the London Mathematical Society, 1951 Summary: Denote by \(N(a,b)\) the smallest integer \(n\) so that \[ \frac{a}{b}=\frac{1}{x_1}+\cdots+\frac{1}{x_n},\quad ...
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Perspectives in Education, 2016 Statistical procedure used in adjusting test score difficulties on test forms is known as “equating”. Equating makes it possible for various test forms to be used interchangeably. In terms of where the equating method fits in the assessment cycle, there
Dibu Ojerinde +3 more
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A Review of Test Equating Methods with a Special Focus on IRT-Based Approaches
Statistica, 2018 The overall aim of this work is to review test equating methods with a particularly detailed description of item response theory (IRT) equating. Test score equating is used to compare different test scores from different test forms.
Valentina Sansivieri +2 more
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On the Equation of Diffusion [PDF]
Proceedings of the National Academy of Sciences, 1937 Under the title "The Analytical Theory of Probability," A. Kolmogoroff [1] published a few years ago a mathematically elegant account of what might be called the general theory of diffusion. As the main result of his analysis, he sets up two differential equations for transition probabilities (see below).
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