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Rasch model

The Rasch model, named after Georg Rasch, is a psychometric model for analyzing categorical data, such as answers to questions on a reading assessment or questionnaire responses, as a function of the trade-off between the respondent's abilities, attitudes, or personality traits, and the item difficulty. For example, they may be used to estimate a…

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Overview

Features of the Rasch model

The mathematical form of the Rasch model for dichotomous data

Polytomous extensions of the Rasch model

Other considerations

Advanced semantic analysis

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Map overview Semantic statistics

Rasch model

Nodes61
Edges60
Triples191
Avg. degree1.97
Density0.032787
Components1

How this topic connects Entity context

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Rasch model

Top relations

related to Further reading · 82
Rasch model → Adams, Andrich, Applications, Applying, Archived, Assessment, Australia, Available, Baker, BERJ, Best Test Design, Beverly Hills, BF02293814, Blinkhorn, Boca Raton, Br, Bull, Carstensen, Chicago, College Park
related to External links · 23
Rasch model → Applied Measurement, Archived, Assessment Research Center, Berkeley Evaluation, ConstructMap, Directory, Education, Educational, Illinois Urbana Champ, Institute, IRT Modeling Lab, Journal, June, Measurement, National Council, NCME, Objective Measurement Online Rasch, Outcome Measurement, Psychological TestingThe Trouble, Rasch
related to Scaling · 15
Rasch model → As, Figure, Figures, For, However, In, Once, Rasch, Rather, TCC, The, The TCC, This, Total, When
related to Interpreting scale locations · 14
Rasch model → Figure, For, Guttman, However, ICC, ICCs, In, IRF, It, Item Response Function, Rasch, The, The Item Characteristic Curve, When
related to Features of the Rasch model · 11
Rasch model → Danish, Georg Rasch, LCJ, Poisson, Prior, Rasch, Rasch's, The, The Rasch, This, Thurstone
related to The mathematical form of the Rasch model for dichotomous data · 10
Rasch model → Conversely, For, Given, In, It, Let, Pr, Rasch, This, Thus
measured by · 9
Rasch model → Beyond, By, For, In, Rasch, Rasch's, Specifically, The, When
related to Invariant comparison and sufficiency · 9
Rasch model → Guttman, However, IRT, Rasch, Specifically, That, The, The Rasch, This
related to Other considerations · 4
Rasch model → However, Just, Rasch, This
related to Polytomous extensions of the Rasch model · 4
Rasch model → Likert, Rasch, There, These

Important terminology Word statistics

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Important terminology

model rasch item measurement data person response items models used ability probability difficulty educational correct dichotomous one test total scores

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Rasch modelis amodel in one sense in that it represents the structure which data should exhibit in order to obtain measurements from the data0.90text
those described belowinstance ofbased on methods0.80text
right/wrong answersinstance ofperson and item locations are estimated on a single scale as shown in Figure 2.Interpreting scale locationsFor dichotomous data0.80text
by definitioninstance ofperson and item locations are estimated on a single scale as shown in Figure 2.Interpreting scale locationsFor dichotomous data0.80text
the location of an item on a scale corresponds with the person location at which there is a 0.5 probability of a correct response to the questioninstance ofperson and item locations are estimated on a single scale as shown in Figure 2.Interpreting scale locationsFor dichotomous data0.80text
right/wrong answersinstance ofInterpreting scale locationsFor dichotomous data0.80text
by definitioninstance ofInterpreting scale locationsFor dichotomous data0.80text
the location of an item on a scale corresponds with the person location at which there is a 0.5 probability of a correct response to the questioninstance ofInterpreting scale locationsFor dichotomous data0.80text
test scores are directly treated as measurements without requiring a theoretical foundation for measurementinstance ofin which data0.80text
Conditional Maximum Likelihood estimationinstance ofa number of item parameters can be estimated iteratively through application of a process0.80text
Rasch modelmeasured byIn0.60section
Rasch modelmeasured byRasch0.60section

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