MAP Growth
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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
![](https://www.nwea.org/uploads/2021/06/psychometrics_research-brief.jpg)
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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
![](https://www.nwea.org/uploads/2021/06/psychometrics_research-brief.jpg)
![](https://www.nwea.org/uploads/2021/06/psychometrics_research-brief.jpg)
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
![](https://www.nwea.org/uploads/2021/06/psychometrics_research-brief.jpg)
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The report documents the process NWEA followed to determine and validate the cut scores for fall, winter, and spring that can be used to identify students in Grades Kā8 who have severe learning difficulties and need intensive intervention in reading and mathematics.
By: Wei He, Patrick Meyer
Products: MAP Growth
Topics: Guidance
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This report presents the results of a mode comparability study conducted through simulations to evaluate how scores from MAP Growth administered on the constraint-based engine (CBE) compare to those administered on the current MAP Growth engine known as COLO.
By: Ann Hu, Patrick Meyer, May Chien
Products: MAP Growth
Topics: Measurement & scaling, Test design
![](https://www.nwea.org/uploads/2021/06/psychometrics_research-brief.jpg)
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Spanish MAP Growth Reading technical report
This technical report documents the processes and procedures employed by NWEA to build and support the Spanish MAP Growth Reading assessment.
By: Shudong Wang, Patrick Meyer, Carmen Hall, Teresa Krastel, Adam Withycombe
Products: MAP Growth, MAP Spanish
Topics: Test design, Assessments in Spanish, Computer adaptive testing
![](https://www.nwea.org/uploads/2021/06/psychometrics_research-brief.jpg)
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This report presents the results of a mode comparability study conducted based on empirical data to evaluate how scores from MAP Growth administered on the constraint-based engine (CBE) compare to those administered on the current MAP Growth engine known as COLO.
By: Patrick Meyer, Emily Bo
Products: MAP Growth
Topics: Measurement & scaling, Test design