fourclass_ex: mixRaschTools Sample Four Class Model ————–

In mixRaschTools: Plotting and Average Theta Functions for Multiple Class Mixed Rasch Models

Description

Object containing model information for a four class model.

Usage

fourclass_ex

Format

This four class mixed Rasch model was created with the use of the mixRasch program (Willse, 2014) using a subset of the 2012 PISA US math achievement data (OECD, 2012). This model was created using the "Math Self Efficacy" scale included in the in the contextual assessment included in that year. The dataset used for the models was created using students from the United States who had completed all math questions contained in the PM7A booklet. The final dataset contained 12 dichotomously scored math achievement items creating a sample of 1229 students. These models contain the following parameters: "fourclass_ex" contains the ability estimates, item parameters, and standard errors for a four class Rasch model fitted using the mixRasch program. "threeclass_ex" contains the ability estimates, item parameters, and standard errors for a three class Rasch model fitted using the mixRasch program.

Source

http://www.oecd.org/pisa/pisaproducts/pisa2012database-downloadabledata.htm

References

Organisation for Economic Co-operation and Development., & Programme for International Student Assessment. (2012a). Paris: OECD. Willse, J. T. (2014). Package mixRasch. R package version 1.1.

mixRaschTools documentation built on Oct. 2, 2019, 5:03 p.m.