simeq

Contains bivariate test score data (bivar1 and bivar2), IRT data (irtNEATx and irtNEATy), data from an equivalent groups (EG) design (FXEGglm and FYEGglm) and data from a non-equivalent groups with covariates (NEC) design (testdata1 and testdata2), for usage in equating.

datasets

Implements the kernel method of test equating using the CB, EG, SG, NEAT CE/PSE and NEC designs, supporting gaussian, logistic and uniform kernels and unsmoothed and pre-smoothed input data.

Bjorn Andersson

kequate

The Kernel Method of Test Equating

simeq function

A list containing the data frames bivar1 and bivar2 with 1000 observations each, two 5x20 matrices irtNEATx and irtNEATy, two glm objects FXEGglm and FYEGglm and two data frames testdata1 and testdata2.

Format

The EG data is taken from the log-linear models specified in von Davier (2004). The remaining data was generated in R.

simeq: Simulated Test Data

Description

Usage

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Format

Source

References