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IRTest_Cont
has been added.IRTest_Cont
.GHc
as an implicit object.any(class())
to inherits()
.coef_se
that returns S.E. of item parameter estimates."GRM"
) is now available.MLE
for mixed-format analysis.IRTest_Dich
when there exist one or more negative slope parameters.summary
returns the HQ criterion.DataGeneration
’s model_D
argument is fixed.plot
function employs latent_distribution
.latent_distribution
has been developed. This function evaluates an estimated latent density function.reliability
calculates a coefficient on the \(\theta\) scale."PCM"
by inserting latest item parameters instead of inserting starting values repeatedly.inform_f_item
and inform_f_test
are developed."DC"
and "LLS"
was enhanced by updating density parameters every iteration.reliability
uses the raw value in a given data for calculating the reliability coefficient.reliability
returns both test reliability coefficient and item reliability coefficients.latent_dist = "LLS"
) can be applied to estimate a latent distribution.reliability
has been developed to calculate marginal reliability coefficient of IRT.plot_item
has been developed to draw an item response function.IRTest_Poly
when there exist one or more negative slope parameters.item_fit
evaluates item fit.initialitem
) can be automatically generated.NA
values are permitted for estimation functions.MLE
option for ability parameter estimation is added for polytomous data.PCM
model for polytomous data is available.plot
.ggplot2
arguments can be specified to plot
.summary
, additional information is provided; a cursory view of the latent distribution, model fit indices, and the number of parameters used.MLE
is available for IRTest_Dich
.These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
Health stats visible at Monitor.