This technical report documents the processes and procedures employed by NWEA to build and support the English MAP Reading Fluency assessment.

Two studies were conducted to evaluate whether the existing MAP Growth item parameter estimates are invariant across different calibration samples.

This technical report documents the processes and procedures employed by NWEA to build and support the Spanish MAP Growth Reading assessment.

This simulation study examines the measurement precision, item exposure rates, and the depth of the MAP Growth item pools under various grade-level restrictions.

The purpose of this literature review is to study the advantages and limitations of various through-course summative assessment models with the goal of informing the design of the NWEA through-year solution.

This study investigates the impact of three different IRT scaling and equating methods in building an item bank of tests from 23 years of a national licensure exam . The study focuses on several key psychometric issues including scaledriftandequatingerrors.

This study examined the measurement stability of a set of Rasch measurement scales that have been in place for almost 40 years.