Rasch Measurement & Analysis Consultants

Please contact one or more of these experts directly for assistance with Rasch analysis. The amount of assistance offered and its cost is decided by the consultant. Winsteps.com has no control over, or financial interest in, the activities of these independent consultants.
Disclaimer: Winsteps.com provides this information as a public service, with no guarantees as to the quality or price of the services offered.

See also Rasch consultants.

Some of these consultants are available on a full-time basis.

Name Location Email: x = @ Software Special expertise
Kamarul Ariffin Ahmad Malaysia kamarulariffin.a85 x gmail.com Quest IRT, Item Analysis (dichotomous & polytomous), English and Malay
Nikolaus Bezruczko Chicago/Rome Nbezruczko x msn.com Winsteps/Facets Theory-based test models, automatic item generation, linear measurement
Daniel Bogoya Bogota, Colombia dbogoya x yahoo.com Winsteps, ConQuest Item calibration and parameters estimation
Spanish, English
William Boone Cincinnati, Ohio boonewjd x gmail.com Winsteps Variable and output interpretation
Introductory, Intermediate, Advanced Workshops in English and German
Eric Dionne Montreal, Quebec, Canada eric.dionne x umontreal.ca Winsteps, Conquest, SPSS French, English
Sandra Dolan Chicago area sandy x psychometrician.net
psychometrician x sbcglobal.net		 Winsteps, SPSS www.psychometrician.net
Test and certification exam development and analysis, job task analysis, standard setting, NCCA accreditation, surveys/questionnaires
George Engelhard Atlanta, GA, USA gengelh x emory.edu Facets Writing assessment and tests of English as a foreign language
William P. Fisher, Jr. Sausalito, California, USA wpfisherjr x livingcapitalmetrics.com Winsteps, Facets, SPSS, TextPad LivingCapitalMetrics.com
surveys, questionnaires, rating scales, assessments, multifaceted designs, construct mapping, theory, and specification equations; qualitative-quantitative synthesis, sustainable development
English, French
Dr. Manuel Jorge Gonzalez-Montesinos M.
Universidad de Sonora (UNISON)
Universidad Autonoma de Baja California (UABC)
Instituto Nacional para la Evaluacion de la Educacion (INEE)
Sonora, Mexico		 mgm x caborca.uson.mx WINSTEPS, FACETSAll phases of Rasch analysis
Spanish, English
Julie Grondin Quebec, Canada docimetrique x gmail.com Winsteps, Facets, Rumm2030, SPSS, R www.docimetrique.ca
Rasch measurement, educational measurement, Script Concordance Tests, surveys/questionnaires, rating scales, item formulation, general data analysis French, English
Wencheng Hu Guangdong, China wencheng.h x qq.com Winsteps, Facets, R, Python, SPSS Rasch/IRT Analytics and Reporting
Chinese, English
Mike Jabot Fredonia, New York jabot x fredonia.edu Winsteps, Facets and ConQuest Research in Science Teaching
Himal Kandel Sydney, Australia drhimalkandel x gmail.com Winsteps Rasch analysis; Development and validation of the health-related quality of life measures.
Ute Knoch Melbourne, Australia uknoch x unimelb.edu.au Facets Rater and rating scale analysis
English and German
Mingyang Liu Toledo, Ohio, USA ming8678 x gmail.com Winsteps/Facets/SPSS/R scale/test development, educational research and measurement, Rasch models
English/Chinese
Measurement Incorporated
(Craig Deville)		 Chicago, IL, USA cdeville x measinc.com Winsteps, Facets www.measurementinc.com
Mark H. Moulton Vancouver, Washington pythiasconsulting x gmail.com Winsteps, Facets, SPSS, NOUS, Python Program evaluation, assessment, equating, personality profiling, knowledge discovery, multidimensional datasets, NOUS algorithms, custom applications. www.eddata.com/resources/publications/
Carlos A. Pardo Adames
Universidad Catòlica de Colombia 		Bogotà, Colombia capardo x ucatolica.edu.co
carantpar x gmail.com 		Winsteps, Facets, Amos, ConQuest Evidence Center Test Design, Educational Assessment, Measurement, Test-scale development, Suicide Ideation Assessment
Gerardo Prieto
Facultad de Psicología
Universidad de Salamanca 		Salamanca, Spain gprieto x usal.es Winsteps, Facets Psychometrics, scale/test development Psychological and neuropsychological assessment. Writing assessment and tests of Spanish as a foreign language.
Spanish, English
Larry Price Canyon Lake, Texas lprice x txstate.edu SAS, SPSS, Bilog, Parscale, Bigsteps, ConQuest, Multilog, and much more Psychometrics, Bayesian IRT, Testlet Response Theory, DIF, Certification/Licensure Testing
Gustavo Reinoso, Ph.D., OTR/L Buenos Aires, Argentina & Drake University, Des Moines, IA. USA gustyot x gmail.com Winsteps & RUMM2030 Measurement, Evaluation, Statistics, and Assessment. Rasch analysis. Spanish, English. Instrument construction, development and analysis.
Kenneth Royal Raleigh, NC kdroya2 x yahoo.com Winsteps, SPSS Surveys/questionnaires; instrument validation studies; test/exam scoring (certification/licensure, education); assessment and evaluation studies
Randall Schumacker University of Alabama rschumacker x ua.edu Winsteps, Facets Rasch Measurement (Binary, Partial Credit, Rating Scale Analysis), Computer Adaptive Testing, Assessment, Surveys, Tests, Training Evaluation, Program Evaluation
Hyunsoo Seol Seoul, Korea snow x cau.ac.kr WINSTEPS, RUMM 2020 Rasch Measurement
Korean, English
Everett V. Smith Chicago, IL, USA evsmith x uic.edu Winsteps, Facets, Conquest Measurement, Evaluation, Statistics, and Assessment
Alberto Manuel Torreblanca Villavicencio
Jefe Área Técnica
Centro de Medición, Evaluación y Certificación -CMEC
Pontificia Universidad Católica del Perú - PUCP
Lima, Peru		 alberto x torreblanca.pe
alberto.torreblanca x pucp.pe		 Winsteps, Facets, JMetrik, R Survey and Test development and analysis. Equating. DIF analysis. Sample design. Rasch family models. Classical Test Theory. Spanish and English.
Agustin Tristan
Instituto de Evaluacion e Ingenieria Avanzada
Mexico (offices in El Salvador, Colombia and Panama)		 ici_kalt x yahoo.com Winsteps, AMOS,HLM,KALT Psychometrics and biostatistics. Research methods (quantitative and qualitative), sampling techniques (sample size, power analysis, adaptive sampling), Item banking, DIF and equating. Scale development. Test and item validation, pilot and operational testing. Survey and test construction for education, psychology, social and health areas. Rasch from beginners (advanced analysis and applications of anchoring and misfit). IRT and Classical test theory for test and item analysis (Validity, objectivity, reliability). Spanish, French, Italian, English, Portuguese
Kuo-chang Wang Taipei, Taiwan wangkc x ntnu.edu.tw winsteps, facets, sas, spss, lisrel, eqs Biostat
Chinese, English
Dr Julie Winstanley Sydney, Australia julie x whitewinstanley.com RUMM2030 and SPSS (preliminary PCA's) Development and testing of robust psychometric instruments (particularly Health related QOL) through all phases (development of items, piloting and field testing new instruments)
whitewinstanley.com

To nominate yourself for this directory,
please email Mike Linacre, author of Winsteps: mike \at/ winsteps.com.

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Facets Rasch measurement software. Buy for $149. & site licenses. Freeware student/evaluation Minifac download
Winsteps Rasch measurement software. Buy for $149. & site licenses. Freeware student/evaluation Ministep download

Rasch Books and Publications
Invariant Measurement: Using Rasch Models in the Social, Behavioral, and Health Sciences, 2nd Edn, 2024 George Engelhard, Jr. & Jue Wang Applying the Rasch Model (Winsteps, Facets) 4th Ed., Bond, Yan, Heene Advances in Rasch Analyses in the Human Sciences (Winsteps, Facets) 1st Ed., Boone, Staver Advances in Applications of Rasch Measurement in Science Education, X. Liu & W. J. Boone Rasch Analysis in the Human Sciences (Winsteps) Boone, Staver, Yale
Introduction to Many-Facet Rasch Measurement (Facets), Thomas Eckes Statistical Analyses for Language Testers (Facets), Rita Green Invariant Measurement with Raters and Rating Scales: Rasch Models for Rater-Mediated Assessments (Facets), George Engelhard, Jr. & Stefanie Wind Aplicação do Modelo de Rasch (Português), de Bond, Trevor G., Fox, Christine M Appliquer le modèle de Rasch: Défis et pistes de solution (Winsteps) E. Dionne, S. Béland
Exploring Rating Scale Functioning for Survey Research (R, Facets), Stefanie Wind Rasch Measurement: Applications, Khine Winsteps Tutorials - free
Facets Tutorials - free		 Many-Facet Rasch Measurement (Facets) - free, J.M. Linacre Fairness, Justice and Language Assessment (Winsteps, Facets), McNamara, Knoch, Fan
Other Rasch-Related Resources: Rasch Measurement YouTube Channel
Rasch Measurement Transactions & Rasch Measurement research papers - free An Introduction to the Rasch Model with Examples in R (eRm, etc.), Debelak, Strobl, Zeigenfuse Rasch Measurement Theory Analysis in R, Wind, Hua Applying the Rasch Model in Social Sciences Using R, Lamprianou El modelo métrico de Rasch: Fundamentación, implementación e interpretación de la medida en ciencias sociales (Spanish Edition), Manuel González-Montesinos M.
Rasch Models: Foundations, Recent Developments, and Applications, Fischer & Molenaar Probabilistic Models for Some Intelligence and Attainment Tests, Georg Rasch Rasch Models for Measurement, David Andrich Constructing Measures, Mark Wilson Best Test Design - free, Wright & Stone
Rating Scale Analysis - free, Wright & Masters
Virtual Standard Setting: Setting Cut Scores, Charalambos Kollias Diseño de Mejores Pruebas - free, Spanish Best Test Design A Course in Rasch Measurement Theory, Andrich, Marais Rasch Models in Health, Christensen, Kreiner, Mesba Multivariate and Mixture Distribution Rasch Models, von Davier, Carstensen
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facebook Forum: Rasch Measurement Forum to discuss any Rasch-related topic

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Rasch, Winsteps, Facets online Tutorials

Coming Rasch-related Events: Winsteps and Facets
Oct 21 - 22 2024, Mon.-Tues. In person workshop: Facets and Winsteps in expert judgement test validity - UNAM (México) y Universidad Católica de Colombia. capardo@ucatolica.edu.co, benildegar@gmail.com
Oct. 4 - Nov. 8, 2024, Fri.-Fri. On-line workshop: Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com
Jan. 17 - Feb. 21, 2025, Fri.-Fri. On-line workshop: Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com
May 16 - June 20, 2025, Fri.-Fri. On-line workshop: Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com
June 20 - July 18, 2025, Fri.-Fri. On-line workshop: Rasch Measurement - Further Topics (E. Smith, Facets), www.statistics.com
Oct. 3 - Nov. 7, 2025, Fri.-Fri. On-line workshop: Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com

 

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