CTT-package             Classical Test Theory Functions
CTTdata                 Example Multiple-Choice Data
CTTkey                  Example Multiple-Choice Key
cttICC                  Function for producing theoretical and
                        empirical item characteristic curves.
disattenuated.cor       Function for disattentuated correlation
distractor.analysis     Function for item distractor analysis
distractorAnalysis      Function for item distractor analysis
itemAnalysis            Function for item reliability analysis
polyserial              Function for calculating polyserial
                        correlations
reliability             Function for item reliability analysis
score                   Function to score the response files
score.transform         Function for transforming scores onto different
                        scales
spearman.brown          Functions for Spearman-Brown "Prophecy" Formula
subscales               Function to create subscales based on a design
                        matrix
