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Comparisons of Mathematics Intervention Effects in Resource and Inclusive Classrooms
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Bottge, Brian A.; Cohen, Allan S.; Choi, Hye-Jeong – Exceptional Children, 2018
In this article, we describe results of a reanalysis of two randomized studies that tested the effects of enhanced anchored instruction (EAI) on the fractions computation performance of students in special education resource rooms and inclusive mathematics classrooms. Latent class analysis and latent transition analysis classified students…
Descriptors: Mathematics Instruction, Intervention, Resource Room Programs, Inclusion
Comparisons of Mathematics Intervention Effects in Resource and Inclusive Classrooms
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Bottge, Brian A.; Cohen, Allan S.; Choi, Hye-Jeong – Grantee Submission, 2017
In this article, we describe results of a reanalysis of two randomized studies that tested the effects of enhanced anchored instruction (EAI) on the fractions computation performance of students in special education resource rooms and inclusive mathematics classrooms. Latent class analysis and latent transition analysis classified students…
Descriptors: Mathematics Instruction, Intervention, Resource Room Programs, Inclusion
Detecting Cognitive Change in the Math Skills of Low-Achieving Adolescents
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Cho, Sun-Joo; Bottge, Brian A.; Cohen, Allan S.; Kim, Seock-Ho – Journal of Special Education, 2011
Current methods for detecting growth of students' problem-solving skills in math focus mainly on analyzing changes in test scores. Score-level analysis, however, may fail to reflect subtle changes that might be evident at the item level. This article demonstrates a method for studying item-level changes using data from a multiwave experiment with…
Descriptors: Test Bias, Group Membership, Mathematics Skills, Ability
Detecting Intervention Effects Using a Multilevel Latent Transition Analysis with a Mixture IRT Model
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Cho, Sun-Joo; Cohen, Allan S.; Bottge, Brian – Grantee Submission, 2013
A multilevel latent transition analysis (LTA) with a mixture IRT measurement model (MixIRTM) is described for investigating the effectiveness of an intervention. The addition of a MixIRTM to the multilevel LTA permits consideration of both potential heterogeneity in students' response to instructional intervention as well as a methodology for…
Descriptors: Intervention, Item Response Theory, Statistical Analysis, Models
Measuring Middle Grades Teachers' Understanding of Rational Numbers with the Mixture Rasch Model
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Izsak, Andrew; Orrill, Chandra Hawley; Cohen, Allan S.; Brown, Rachael Eriksen – Elementary School Journal, 2010
We report the development of a multiple-choice instrument that measures the mathematical knowledge needed for teaching arithmetic with fractions, decimals, and proportions. In particular, the instrument emphasizes the knowledge needed to reason about such arithmetic when numbers are embedded in problem situations. We administered our instrument to…
Descriptors: Mathematics Instruction, Numbers, Arithmetic, Interviews
A Speeded Item Response Model with Gradual Process Change
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Goegebeur, Yuri; De Boeck, Paul; Wollack, James A.; Cohen, Allan S. – Psychometrika, 2008
An item response theory model for dealing with test speededness is proposed. The model consists of two random processes, a problem solving process and a random guessing process, with the random guessing gradually taking over from the problem solving process. The involved change point and change rate are considered random parameters in order to…
Descriptors: Problem Solving, Item Response Theory, Models, Case Studies