A Multilevel Bayesian Item Response Theory Method for Scaling Socioeconomic Status in International Studies of Education  

Oleh:

May, Henry

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Journal Of Educational And Behavioral Statistics vol. 31 no. 1 (2006), page 63-80.
Topik: Bayesian estimation; item response theory; missing data; multilevel modeling; socioeconomic status
Fulltext: 63.pdf (677.97KB)

Isi artikel

A new method is presented and implemented for deriving a scale of socioeconomic status (SES) from international survey data using a multilevel Bayesian item response theory (IRT) model. The proposed model incorporates both international anchor items and nation-specific items and is able to (a) produce student family SES scores that are internationally comparable, (b) reduce the influence of irrelevant national differences in culture on the SES scores, and (c) effectively and efficiently deal with the problem of missing data in a manner similar to Rubin’s (1987) multiple imputation approach. The results suggest that this model is superior to conventional models in terms of its fit to the data and its ability to use information collected via international surveys.

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