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A Rasch analysis workflow14 days ago
Fit the model required by the scoring structure | Overall summary and reliability | Item estimates, fit, and thresholds | Person estimates and fit | Targeting and information | Local and trait dependence | Differential item functioning | The same analysis in the application | References
Data structures for rasch models30 days ago
Rasch, partial credit and rating scale models | Explanatory item and threshold models | One row per item | One row per threshold | Multiple ratings | Extended Frames | Comparative Judgement | Extended Frames for Comparative Judgement | Simulated data
DIF with several person factors and repeated measures30 days ago
Design the analysis around the person | Fit once and test both factors | Quantify the departure | References
Explanatory Rasch models30 days ago
Item predictors | Threshold predictors | Comparing the restriction with a free calibration | Fixed departures | Comparative judgement | Validation | References
Many-facet Rasch measurement30 days ago
When to use the MFRM | Read the structural parameters | Item-by-facet interaction | Diagnostics | References
Rasch analysis of comparative judgements30 days ago
Fit the Bradley--Terry--Luce model | Bootstrap goodness of fit | Check transitivity and residual structure | Examine DIF across judge groups | Equate panels through common objects | Linked frames for paired comparisons | The same analysis in the application | A worked analysis on real data | References
Simulation-based checks of Rasch diagnostics30 days ago
Simulating from the models | Parameter recovery | Item misfit | Differential item functioning | Local response dependence | Paired comparisons | Repeated simulation | Validation studies | References
The Extended Frame of Reference model30 days ago
Frames and units | Fit the model | Uncertainty and equal-unit comparisons | Item invariance across frames | Refit after a departure | References