Differential item functioning across gender with MIMIC modeling: PISA 2018 financial literacy items

Year 2022, Volume: 9 Issue: 3, 631 - 653, 30.09.2022

Fatıma Münevver Saatçioğlu

https://doi.org/10.21449/ijate.1076464

Cited By: 2

Abstract

The aim of this study is to investigate the presence of DIF over the gender variable with the latent class modeling approach. Data were 953 students from the USA who participated in the PISA 2018 8th-grade financial literacy assessment. Latent class analysis (LCA) approach was used to determine the latent classes and the data fit the three-class model better in line with fit indices. To obtain more information about the characteristics of the emerging classes, uniform and non-uniform DIF sources were determined by using the Multiple Indicator Multiple Causes (MIMIC) model. The findings are very important in terms of contributing to the interpretation of latent classes. According to the results, the gender variable is a potential source of DIF for latent class indicators. Gathering unbiased estimates for the measurement and structural parameters, it is important to include direct effects in the classes. Ignoring these effects can lead to incorrect determination of implicit classess. An example of the application of Multiple Indicator Multiple Causes (MIMIC) model showed in a latent class framework with a stepwise approach with this study.

Keywords

Differential item functioning, Latent class analysis, Measurement invariance, Mixture modeling, PISA 2018

Differential item functioning across gender with MIMIC modeling: PISA 2018 financial literacy items

Abstract

The aim of this study is to investigate the presence of DIF over the gender variable with the latent class modeling approach. The data were collected from 953 students who participated in the PISA 2018 8th-grade financial literacy assessment in the USA. Latent Class Analysis (LCA) approach was used to identify the latent classes, and the data fit the three-class model better in line with fit indices. In order to obtain more information about the characteristics of the emerging classes, uniform and non-uniform DIF sources were identified by using the Multiple Indicator Multiple Causes (MIMIC) model. The findings are very important in terms of contributing to the interpretation of latent classes. According to the results, the gender variable was a source of DIF for latent classes. It is important to include direct effects by gathering unbiased estimates for the measurement and structural parameters. Disregarding these effects can lead to incorrect identification of implicit classess. A sample application of MIMIC model was performed in a latent class framework with a stepwise approach in this study.

Keywords

Differential item functioning, Latent class analysis, Measurement invariance, Mixture modeling, PISA 2018

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