Detection of Dichotomous Differential Item Functioning (DIF) and Differential Distractor Functioning (DDF) by Non-Linear Regression Models

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Documentation for package ‘difNLR’ version 1.0.0

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difNLR-package Detection of Dichotomous Differential Item Functioning (DIF) and Differential Distractor Functioning (DDF) by Non-Linear Regression Models
AIC.difNLR Performs DIF detection using Non-Linear Regression method.
BIC.difNLR Performs DIF detection using Non-Linear Regression method.
coef.difNLR Performs DIF detection using Non-Linear Regression method.
constrNLR Constraints for Non-Linear Regression Model
ddfMLR Performs DDF detection using Multinomial Log-linear Regression model.
difMedical Dichotomous Data Set of Admission Test to Medical School
difMedicalkey Key of Correct Answers for 'difMedicaltest' Data Set
difMedicaltest Data Set of Admission Test to Medical School
difNLR Performs DIF detection using Non-Linear Regression method.
fitted.difNLR Performs DIF detection using Non-Linear Regression method.
genNLR Generates binary data set based on Non-Linear Regression model (generalized logistic regression).
GMAT Dichotomous Data Set Based on Graduate Management Admission Test with the Same Total Score Distribution for Groups
GMAT2 Dichotomous Data Set Based on Graduate Management Admission Test
GMAT2key Key of Correct Answers for 'GMAT2test' Data Set
GMAT2test Data Set Based on Graduate Management Admission Test
GMATkey Key of Correct Answers for 'GMATtest' Data Set
GMATtest Data Set Based on Graduate Management Admission Test with the Same Total Score Distribution for Groups
logLik.difNLR Performs DIF detection using Non-Linear Regression method.
MLR DDF likelihood ratio statistics based on Multinomial Log-linear Regression model.
NLR Non-Linear Regression DIF statistic
plot.ddfMLR Performs DDF detection using Multinomial Log-linear Regression model.
plot.ddfMR Performs DDF detection using Multinomial Log-linear Regression model.
plot.difNLR Performs DIF detection using Non-Linear Regression method.
predict.difNLR Performs DIF detection using Non-Linear Regression method.
print.ddfMLR Performs DDF detection using Multinomial Log-linear Regression model.
print.difNLR Performs DIF detection using Non-Linear Regression method.
startNLR Calculates starting values for 'difNLR' function.
_PACKAGE Detection of Dichotomous Differential Item Functioning (DIF) and Differential Distractor Functioning (DDF) by Non-Linear Regression Models