irt_gen | R Documentation |
Creates a data frame of item parameters.
irt_gen(theta, a_par = 1, b_par, c_par = 0, D = 1)
theta |
numeric ability estimate. |
a_par |
numeric discrimination parameter. |
b_par |
numeric or vector of numerics difficulty parameter(s). |
c_par |
numeric guessing parameter. |
D |
numeric parameter to specify logistic (1) or normal (1.7). |
irt_gen(theta = 0.2, b_par = 0.6)
irt_gen(theta = 0.2, a_par = 1.15, b_par = 0.6)
irt_gen(theta = 0.2, a_par = 1.15, b_par = 0.6, c_par = 0.2)
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