Scored                  Binary (true/false) responses to a test
Unscored                Original, unscored multiple-choice responses to
                        a test
api                     The Z3 appropriateness index
dpv                     Draw plausible values
eap                     EAP estimation of ability
est                     Estimate item parameters
grp                     Bin the latent variable estimates
iif                     Item information function
internal                Internal functions
irf                     Item response function
irtoys-package          Estimate and plot IRT models bor binary
                        responses
itf                     Test item fit
l2m                     Transform a list of lists... to a matrix
mlebme                  Maximum likelihood and Bayes Modal estimation
                        of ability
normal.qu               Normal quadrature points and weights
npp                     Non-parametric characteristic curves
plot.iif                A plot method for item information functions
plot.irf                A plot method for item response functions
plot.tif                A plot method for test information functions
plot.trf                A plot method for test response functions
qrs                     Quantiles of the ranked sum scores
read.ip.bilog           Read in parameter estimates
read.ip.icl             Read in parameter estimates
read.qu.icl             Read in quadrature
read.resp               Read responses from a file
sca                     Linear transformation of the IRT scale
sco                     Score a multiple choice test
sim                     Simulate response data
tgp                     Non-parametric option curves
tif                     Test information function
trf                     Test response function
tsc                     True scores with standard errors
