simMST {irtQ} | R Documentation |
Simulated 1-3-3 MST Panel Data
Description
A simulated multistage testing (MST) dataset based on a 1-3-3 panel structure, used in the simulation study by Lim et al. (2020).
Usage
simMST
Format
A list containing five internal objects:
- item_bank
A data frame of item metadata including item parameters and related information.
- module
A binary matrix that maps items in the item bank to MST modules. This structure specifies the item-to-module assignment, similar to the
modules
argument in therandomMST()
function from the mstR package (Magis et al., 2017).- route_map
A binary square matrix that defines the MST transition structure, showing module pathways across stages. This corresponds to the
transMatrix
argument in therandomMST()
function in the mstR package.- cut_score
A list of numeric vectors specifying the routing cut scores between MST stages. Each vector represents the cut scores used to determine module transitions for a particular stage.
- theta
A numeric vector of ability (theta) values used to evaluate the panel's measurement precision across the latent trait continuum.
This 1-3-3 MST panel includes 7 modules across 3 stages. Each module contains 8 dichotomously scored items calibrated under the IRT 3-parameter logistic (3PL) model.
Author(s)
Hwanggyu Lim hglim83@gmail.com
References
Magis, D., Yan, D., & von Davier, A. A. (2017). Computerized adaptive and multistage testing with R: Using packages catR and mstR. Springer.
Lim, H., Davey, T., & Wells, C. S. (2020). A recursion-based analytical approach to evaluate the performance of MST. Journal of Educational Measurement, 58(2), 154–178.