Presentation paper
A large-scale, long-term study of scale drift: The micro view and the macro view
2016

Description
The development of measurement scales for use across years and grades in educational settings provides unique challenges, as instructional approaches, instructional materials, and content standards all change periodically. This study examined the measurement stability of a set of Rasch measurement scales that have been in place for almost 40 years.
See MoreRelated Topics


Achievement and Growth Norms for Course-Specific MAP Growth Tests
This report documents the procedure used to produce the achievement and growth user norms for a series of the course-specific MAP® Growth™ subject tests, including Algebra 1, Geometry, Algebra 2, Integrated Math I, Integrated Math II, Integrated Math III, and Biology/Life Science. Among these tests, Integrated Math I, Integrated Math II, Integrated Math III, and Biology/Life Science were the first time to have their norms available. The remaining tests, i.e., Algebra 1, Geometry, and Algebra 2, had their norms updated including receiving more between-term growth norms by using more recent test events. Procedure for norm sample selection and a model-based approach using the multivariate true score model (Thum & He, 2019) that factors out known imprecision of scores to generate the norms are also provided in detail, along with the snapshots of the achievement and growth norms for each test.
By: Wei He
Products: MAP Growth
Topics: Measurement & scaling


Longitudinal models of reading and mathematics achievement in deaf and hard of hearing students
New research using longitudinal data provides evidence that deaf and hard of hearing (DHH) students continue to build skills in math and reading throughout grades 2 to 8, challenging assumptions that DHH students’ skills plataeu in elementary grades.
By: Stephanie Cawthon, Elizabeth Barker, Johny Daniel, North Cooc, Ana Vielma
Topics: Equity, Measurement & scaling


English MAP Reading Fluency technical report
This technical report documents the processes and procedures employed by NWEA to build and support the English MAP Reading Fluency assessment.
By: Fang Peng, Kang Xue, Carmen Hall, John Newburn
Products: MAP Reading Fluency
Topics: Computer adaptive testing, Reading & language arts, Test design


Achievement and growth norms for English MAP Reading Fluency Foundational Skills
This report documents the norming study procedure used to produce the achievement and growth user norms for English MAP Reading Fluency Foundational Skills.
By: Wei He
Products: MAP Reading Fluency
Topics: Measurement & scaling


The MAP Growth theory of action describes key features of MAP Growth and its position in a comprehensive assessment system.
By: Patrick Meyer, Michael Dahlin
Products: MAP Growth
Topics: Equity, Measurement & scaling, Test design


Bayesian uncertainty estimation for Gaussian graphical models and centrality indices
This study compares estimation of symptom networks with Bayesian GLASSO- and Horseshoe priors to estimation using the frequentist GLASSO using extensive simulations.
By: Joran Jongerling, Sacha Epskamp, Donald Williams
Topics: Measurement & scaling


MAP Growth item parameter drift study
This report documents the results of an item parameter drift study designed to check the parameter stability of MAP Growth items.
By: Wei He
Products: MAP Growth
Topics: Computer adaptive testing