MAP Growth


Executive Summary: Content proximity spring 2022 pilot study
This executive summary outlines results from the Content Proximity spring 2022 pilot study, including information on the validity, reliability, and test score comparability of MAP Growth assessments that leverage this new item-selection algorithm.
By: Patrick Meyer, Ann Hu, Xueming (Sylvia) Li
Products: MAP Growth
Topics: Computer adaptive testing, Innovations in reporting & assessment, Test design


Content Proximity Spring 2022 Pilot Study Research Report
The purpose of this research report is to provide detailed information about updates to the MAP Growth item-selection algorithm. This brief includes results from the Content Proximity pilot study, including information on the validity, reliability, and test score comparability of MAP Growth assessments that leverage this new item-selection algorithm.
By: Patrick Meyer, Ann Hu, Xueming (Sylvia) Li
Products: MAP Growth
Topics: Computer adaptive testing, Innovations in reporting & assessment, Test design


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 MAPĀ® Growthā¢ 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


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


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


MAP Growth linking studies: Intended uses, methodology, and recent studies
This document presents the intended uses and methodology of the MAP Growth linking studies, a description of the results provided in the linking study reports, and a summary of the recent linking studies conducted by NWEA to incorporate the new 2020 norms.
By: Ann Hu
Products: MAP Growth


An investigation of item parameter invariance using focused calibration samples for MAP Growth
Two studies were conducted to evaluate whether the existing MAP Growth item parameter estimates are invariant across different calibration samples.
By: Wei He
Products: MAP Growth
Topics: Computer adaptive testing