naa a22 4500 510776531 CHVBK 20180411083232.0 cr unu---uuuuu 180411e20130301xx s 000 0 eng 10.3758/s13428-012-0229-6 doi (NATIONALLICENCE)springer-10.3758/s13428-012-0229-6 Zopluoglu Cengiz Department of Educational Psychology, University of Minnesota, 140 Education Sciences Building, 56 East River Road, 55455-0364, Minneapolis, MN, USA aut A comparison of two estimation algorithms for Samejima's continuous IRT model [Elektronische Daten] [Cengiz Zopluoglu] This study compares two algorithms, as implemented in two different computer softwares, that have appeared in the literature for estimating item parameters of Samejima's continuous response model (CRM) in a simulation environment. In addition to the simulation study, a real-data illustration is provided, and CRM is used as a potential psychometric tool for analyzing measurement outcomes in the context of curriculum-based measurement (CBM) in the field of education. The results indicate that a simplified expectation-maximization (EM) algorithm is as effective and efficient as the traditional EM algorithm for estimating the CRM item parameters. The results also show promise for using this psychometric model to analyze CBM outcomes, although more research is needed in order to recommend CRM as a standard practice in the CBM context. Psychonomic Society, Inc., 2012 Continuous response model nationallicence Continuous IRT model nationallicence Item response theory nationallicence Item parameter estimation nationallicence Item parameter recovery nationallicence Simulation nationallicence Curriculum-based measurement nationallicence Behavior Research Methods Springer-Verlag 45/1(2013-03-01), 54-64 45:1<54 2013 45 13428 https://doi.org/10.3758/s13428-012-0229-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.3758/s13428-012-0229-6 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Zopluoglu Cengiz Department of Educational Psychology, University of Minnesota, 140 Education Sciences Building, 56 East River Road, 55455-0364, Minneapolis, MN, USA aut NATIONALLICENCE 773 0- Behavior Research Methods Springer-Verlag 45/1(2013-03-01), 54-64 45:1<54 2013 45 13428 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer