EPV                     Expected Posterior Variance (EPV)
Ii                      Item information functions, first and second
                        derivatives (4PL)
MEI                     (Maximum) Expected Information (MEI)
MWI                     Maximum likelihood weighted information (MLWI)
                        and maximum posterior weighted information
                        (MPWI)
OIi                     Observed information function (4PL)
Pi                      Item response probabilities, first, second and
                        third derivatives (4PL)
createItemBank          Item bank generation
eapEst                  EAP ability estimation under the 4PL model
eapSem                  Standard error of EAP ability estimation under
                        the 4PL model
nextItem                Selection of the next item
randomCAT               Random generation of adaptive tests
semTheta                Standard error of ability estimation under the
                        4PL model
startItems              Selection of the first items
tcals                   Items parameters of the TCALS 1998 data set
testList                Testing the format of the input lists
thetaEst                Ability estimation under the 4PL model
