Technical Report: Differential Item Functioning analyses on the ELOM 4&5 across all 11 South African languages

The insights derived from these analyses can be used to enhance the ELOM 4&5 Technical Manual, through adding to existing analyses of Differential Item Functioning on the original 2016 sample, thus completing the assessment of ELOM 4&5 measurement equivalence.

Questions of bias and equivalence are fundamental issues that must be addressed in the development of tests, such as the ELOM 4&5 that are intended for use in several cultural or linguistic populations. Such tests must be assessed for their linguistic, cultural, functional and metric equivalence.

Linguistic equivalence is established when the words and linguistic meaning used in the instruments and instructions are the same across the languages of administration. Related, functional equivalence is established when the test instructions elicit the same behaviour in children from different backgrounds.

Authors: Prof. Andrew Dawes (University of Cape Town), Matthew Snelling (Senior Evaluation and Learning Consultant)

Published: 2023

Download the paper here.

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