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Download full textDeMars, Christine E. – 2002
Using simulated data, the MULTILOG and PARSCALE software packages were compared for their recovery of item and trait parameters under the graded response and generalized partial credit item response theory models. The shape of the latent population distribution (normal, skewed, or uniform) and the sample size (250 or 500) were varied. Parameter…
Descriptors: Computer Software, Item Response Theory, Simulation, Statistical Analysis
Muraki, Eiji – 1992
RESGEN is a computer program designed to generate simulated latent trait distributions and then dichotomous or polytomous item responses based on item response models. The latent trait distributions can be univariate or multivariate normal, log-normal, uniform, or gamma. The item response models utilized in this program may have characteristics…
Descriptors: Computer Software, Computer Software Development, Item Response Theory, Models
