When constructing a test, an initial decision is choosing an appropriate item response format which can be classified as selected or constructed. In large-scale tests where time and finance are of concern, the use of response chosen known as multiple-choice items is quite widespread. This study aimed at investigating the impact of response format on the performance of structure tests. Concurren...

Consistent behavior is a desirable characteristic that common items are expected to have when administered to different groups. Findings from the literature have established that items do not always behave in consistent ways; item indices and IRT item parameter estimates of the same items differ when obtained from different administrations. Content effects, such as discrepancies in instructiona...

This study aims at investigating the equivalence of mathematics try out scores junior high school through anchor. In study, 2 Parameters Logistic (2PL) model Item Response Theory (IRT) analysis was used Haebara method. The estimation step equating parameter utilized equateIRT package in R program. results show that relationship between questions 1 and cannot be said to equivalent. After analyzi...

In specifications of tastes and technology, econometricians often impose curvature globally, but monotonicity only locally or not at all. In fact monotonicity rarely is even mentioned in that literature. But without satisfaction of both curvature and monotonicity, the second order conditions for optimizing behavior fail, and duality theory fails. The resulting first order conditions, demand fun...

Methods and Results for application of the quantile equating method to data from 1 H-NMR analysis of urine samples. For plasma LC-MS and 1 H-NMR data, PC1–PC2 loadings plots and lists with variables having lowest B1–B2 correlation of quantile values before equating. Typical examples of plasma 1 H-NMR spectra.

Creating a vertical scale involves several decisions on assessment designs and statistical analyses to determine the most appropriate vertical scale. This research study aims at investigating common item stability check procedures to arrive at vertical linking item sets that will produce the necessary constants for computing vertical theta (ability) estimates and scale scores on a vertical scal...

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