Estimation Helper Functions
estimate_people_3pl_check_input(responses, items)quadrature()
estimate_items_3pl_check_input(responses, people)
estimate_items_3pl_init_par(fix, init, n.items)
the responses data
the item parameters
the people parameters
a list of fixed parameter values
the initial values of parameters
the number of items
qudrature was originally intended to call gaussquad::hermite.h.quadrature.rules(12)[[12]]