All Publications | NWEA https://www.nwea.org/research/theme/item-response-theory/ Partnering to Help all Kids Learn® Fri, 13 Sep 2024 16:06:27 +0000 en-US hourly 1 https://wordpress.org/?v=6.6.2 MAP Growth K-2 item fit analysis study: A follow-up study https://www.nwea.org/research/publication/map-growth-k-2-item-fit-analysis-study-a-follow-up-study/ Tue, 11 Jan 2022 08:12:06 +0000 https://prd.cms.nwea.io/research/publication/map-growth-k-2-item-fit-analysis-study-a-follow-up-study/ The post MAP Growth K-2 item fit analysis study: A follow-up study appeared first on NWEA.

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]]> MAP Growth technical report https://www.nwea.org/research/publication/map-growth-technical-report/ Thu, 11 Nov 2021 00:34:19 +0000 https://prd.cms.nwea.io/research/publication/map-growth-technical-report/ The post MAP Growth technical report appeared first on NWEA.

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]]> Automated item generation (AIG): A future for more equitable measurement https://www.nwea.org/research/publication/automated-item-generation-aig-a-future-for-more-equitable-measurement/ Fri, 05 Nov 2021 22:30:35 +0000 https://prd.cms.nwea.io/research/publication/automated-item-generation-aig-a-future-for-more-equitable-measurement/ The post Automated item generation (AIG): A future for more equitable measurement appeared first on NWEA.

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]]> Robust IRT scaling: Considerations in constructing item bank from tests across years https://www.nwea.org/research/publication/robust-irt-scaling-considerations-in-constructing-item-bank-from-tests-across-years/ Thu, 20 May 2021 20:04:00 +0000 https://prd.cms.nwea.io/research/publication/robust-irt-scaling-considerations-in-constructing-item-bank-from-tests-across-years/ The post Robust IRT scaling: Considerations in constructing item bank from tests across years appeared first on NWEA.

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]]> MAP Growth K–2 item fit analysis study https://www.nwea.org/research/publication/map-growth-k-2-item-fit-analysis-study/ Thu, 20 May 2021 06:20:16 +0000 https://prd.cms.nwea.io/research/publication/map-growth-k-2-item-fit-analysis-study/ The post MAP Growth K–2 item fit analysis study appeared first on NWEA.

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]]> A comparison of item parameter estimates in Pychometrik and the existing item calibration tool https://www.nwea.org/research/publication/a-comparison-of-item-parameter-estimates-in-pychometrik-and-the-existing-item-calibration-tool/ Wed, 19 May 2021 23:14:46 +0000 https://prd.cms.nwea.io/research/publication/a-comparison-of-item-parameter-estimates-in-pychometrik-and-the-existing-item-calibration-tool/ The post A comparison of item parameter estimates in Pychometrik and the existing item calibration tool appeared first on NWEA.

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]]> Calibration of Spanish MAP Growth Math tests https://www.nwea.org/research/publication/calibration-of-spanish-map-growth-math-tests/ Thu, 20 May 2021 02:52:08 +0000 https://prd.cms.nwea.io/research/publication/calibration-of-spanish-map-growth-math-tests/ The post Calibration of Spanish MAP Growth Math tests appeared first on NWEA.

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]]> The effect of nonignorable missing data in computerized adaptive test on item fit statistics for polytomous item response models https://www.nwea.org/research/publication/the-effect-of-nonignorable-missing-data-in-computerized-adaptive-test-on-item-fit-statistics-for-polytomous-item-response-models/ Wed, 19 May 2021 19:20:30 +0000 https://prd.cms.nwea.io/research/publication/the-effect-of-nonignorable-missing-data-in-computerized-adaptive-test-on-item-fit-statistics-for-polytomous-item-response-models/ The post The effect of nonignorable missing data in computerized adaptive test on item fit statistics for polytomous item response models appeared first on NWEA.

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]]> Patrick Meyer, PhD https://www.nwea.org/research/our-researchers/patrick-meyer-phd/ Wed, 12 May 2021 02:58:24 +0000 https://prd.cms.nwea.io/research/our-researchers/patrick-meyer-phd/ Patrick Meyer manages the team of psychometricians, statistical analysts, and project managers involved in the district division of NWEA. This team conducts psychometric research for assessments such as MAP Growth and MAP Reading Fluency. His research interests include IRT, psychometric software design, and the psychometric characteristics of teaching measures. Dr. Meyer is the inventor and

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]]> Patrick Meyer manages the team of psychometricians, statistical analysts, and project managers involved in the district division of NWEA. This team conducts psychometric research for assessments such as MAP Growth and MAP Reading Fluency. His research interests include IRT, psychometric software design, and the psychometric characteristics of teaching measures. Dr. Meyer is the inventor and lead developer of jMetrik, an open-source software program used in over 20 countries. He has authored two books and published over 20 articles in peer-reviewed journals such as the Journal of Educational Measurement, Applied Psychological Measurement, and Educational and Psychological Measurement. He has conducted 25 standard-setting workshops in the licensure and certification field, as well as numerous workshops on psychometric theory and the use of jMetrik for data analysis. Prior to joining NWEA in 2018, Dr. Meyer worked as an associate professor with tenure in the Curry School of Education at the University of Virginia, where he taught courses in educational measurement and applied statistics. He began his academic career in 2004 as an assistant professor at James Madison University’s Center for Assessment and Research Studies. Dr. Meyer holds a PhD in educational psychology and research from the University of South Carolina.

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]]> Xueming (Sylvia) Li, EdD https://www.nwea.org/research/our-researchers/xueming-sylvia-li-edd/ Wed, 12 May 2021 02:57:19 +0000 https://prd.cms.nwea.io/research/our-researchers/xueming-sylvia-li-edd/ Xueming (Sylvia) Li focuses on psychometric issues related to MAP Growth. Her research interests include computer-based testing, applications of IRT, test validity, cross-cultural assessment, and test score linking and equating. Prior to joining NWEA in 2015, she received a doctoral degree in research, educational measurement, and psychometrics from the University of Massachusetts Amherst.

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]]> Xueming (Sylvia) Li focuses on psychometric issues related to MAP Growth. Her research interests include computer-based testing, applications of IRT, test validity, cross-cultural assessment, and test score linking and equating. Prior to joining NWEA in 2015, she received a doctoral degree in research, educational measurement, and psychometrics from the University of Massachusetts Amherst.

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