psychotools

Generic Conspiracist Beliefs Scale (2016 Data)

Popularity of First Names

Choice among German Political Parties

Mathematics 101 Exam Results

Memory Deficits in Psychiatric Patients

Pair Clustering Data in Klauer (2006)

Simulated Data for fitting a 3PL and 3PLu

Quality of Multichannel Reproduced Sound

Performance in a Source-Monitoring Experiment

Stereotype Threat in Dutch Differential Aptitude Test

Situation-Response Questionnaire on Verbal Aggression

Measuring Gratitude in Youth

Anchor Methods for the Detection of Uniform DIF the Rasch Model

Anchor methods for the detection of uniform DIF in the Rasch model

Coercing Item Response Data

Bradley-Terry Model Fitting Function

Extract/Set Covariates

Response Curve Plots for IRT Models

Extract Discrimination Parameters of Item Response Models

Calculation of the Elementary Symmetric Functions and Their Derivatives

Generalized Partial Credit Model Fitting Function

Extract Guessing Parameters of Item Response Models

Information Plots for IRT Models

Extract Item Parameters of Item Response Models

Data Structure for Item Response Data

Set Labels

Multinomial Processing Tree (MPT) Model Fitting Function

Extract/Replace Measurement Scale

Data Structure for Paired Comparisons

Partial Credit Model Fitting Function

Extract Person Parameters of Item Response Models

Person-Item Plots for IRT Models

Parametric Logistic Model Fitting Function

Visualizing Bradley-Terry Models

Plotting Paired Comparison Data

Visualizing IRT Models

Predict Methods for Item Response Models

Formatting Item Response Data

Formatting Paired Comparison Data

Profile Plots for IRT Models

Rasch Model Fitting Function

Region Plots for IRT Models

Simulate Data under a Generalized Partial Credit Model

Simulate Data under a Partial Credit Model

Simulate Data under a Parametric Logistic IRT Model

Simulate Data under a Rasch model

Simulate Data under a Rating Scale Model

Rating Scale Model Fitting Function

Subsetting Item Response Data

Subsetting/Reordering Paired Comparison Data

Summarizing and Visualizing Item Response Data

Extract Threshold Parameters of Item Response Models

Extract Upper Asymptote Parameters of Item Response Models

Extract Worth Parameters