This paper describes procedures for estimating single-administration classification consistency and accuracy indices using item response theory (IRT). This IRT approach is applied to real test data comprised of mixtures of dichotomous and polytomous items. Several different IRT model mixtures are considered. Comparisons are made between the IRT approach and two non-IRT procedures.

In this study, we aim to automatically score the spoken responses from an international English assessment targeted to non-native English-speaking children aged 8 years and above. In contrast to most previous studies focusing on scoring of adult non-native English speech, we explored automated scoring of child language assessment. We developed automated scoring models based on a large set of fe...

Title: Perceived Stress, Unhealthy Eating Behaviors, and Severe Obesity in Low-Income Women Authors: Andrea Richardson ([email protected]) Joanne Arsenault ([email protected]) Sheryl Cates ([email protected]) Mary Muth ([email protected]) Version: 1 Date: 25 Oct 2015 Author’s response to reviews: EDITOR: Your manuscript "Increased Stress May Lead to Poor Eating Behaviors and Severe Obes...

© 2009 American Institute of Physics, S-0031-9228-0907-030-6 Diffusion implies spreading, either observable (physical), or abstract and probabilistic (stochastic). At the beginning of the 19th century, the mathematics of both were established by Joseph Fourier and Pierre Simon Laplace. In 1807 Fourier submitted a monograph, Théorie de la propagation de la chaleur dans les solides (Theory of the...