psychotools

Description

Infrastructure for psychometric modeling such as data classes (for item response data and paired comparisons), basic model fitting functions (for Bradley-Terry, Rasch, parametric logistic IRT, generalized partial credit, rating scale, multinomial processing tree models), extractor functions for different types of parameters (item, person, threshold, discrimination, guessing, upper asymptotes), unified inference and visualizations, and various datasets for illustration. Intended as a common lightweight and efficient toolbox for psychometric modeling and a common building block for fitting psychometric mixture models in package "psychomix" and trees based on psychometric models in package "psychotree".

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Comparing ‘psychotools-Ex.Rout’ to ‘psychotools-Ex.Rout.save’:
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< Failed with error:  'there is no package called 'qs2''
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> S1WantCurse   S1DoCurse S1WantScold   S1DoScold S1WantShout   S1DoShout 
>      0.2275      0.2688      0.236
...[truncated]...
  'there is no package called 'qs2''
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< Loading required namespace: mirt
< Failed with error:  'there is no package called 'qs2''
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< Loading required namespace: mirt
< Failed with error:  'there is no package called 'qs2''

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