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

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Documentation for package ‘difNLR’ version 1.1.1

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difNLR-package Detection of Differential Item Functioning (DIF) and Differential Distractor Functioning (DDF) by Non-Linear Regression Models
AIC.ddfMLR Performs DDF detection using Multinomial Log-linear Regression model.
AIC.difNLR Performs DIF detection using Non-Linear Regression method.
BIC.ddfMLR Performs DDF detection using Multinomial Log-linear Regression model.
BIC.difNLR Performs DIF detection using Non-Linear Regression method.
coef.ddfMLR Performs DDF detection using Multinomial Log-linear Regression model.
coef.difNLR Performs DIF detection using Non-Linear Regression method.
ddfMLR Performs DDF detection using Multinomial Log-linear Regression model.
difNLR Performs DIF detection using Non-Linear Regression method.
fitted.difNLR Performs DIF detection using Non-Linear Regression method.
formulaNLR Formula for Non-Linear Regression Model
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.ddfMLR Performs DDF detection using Multinomial Log-linear Regression model.
logLik.difNLR Performs DIF detection using Non-Linear Regression method.
MLR DDF likelihood ratio statistics based on Multinomial Log-linear Regression model.
MSATB Dichotomous Data Set of Medical School Admission Test in Biology
MSATBkey Key of Correct Answers for 'MSATBtest' Data Set
MSATBtest Data Set of School Admission Test in Biology
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 Differential Item Functioning (DIF) and Differential Distractor Functioning (DDF) by Non-Linear Regression Models