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Differential Item Functioning (DIF) Of The Wechsler Preschool and Primary Scale of Intelligence Administered On Nigerian Children
Subject area: Arts, Social Sciences and Humanities · Area of research: Educational Evaluation
Abstract
Differential Item Functioning (DIF) has been severally studied by psychologists to measure testees performance on test items based on their differences. This paper therefore investigated the Differential Item Functioning (DIF) of testees (pupils) age 7 approximately in the Wechsler Preschool and Primary Scale of Intelligence (WPPSI-IV). Sample was drawn from the population. The sample size of pupils was 512 cut across three ethnic tribes. WPPSI-IV while IRT software (R) was used for data analysis. Findings from the study showed that 145 items function differently, while 125 items did not show bias. It was recommended that testees' interests, beliefs etc. should be taken into consideration during test construction so as to place the children on equal level playground and that the preschool curriculum should be modified to take care of the differences in testees.
References
[1] Alordiah C.O. (2015), Comparison of Effect of Differential Item Functioning under the Methods of Item Response Theory and Classical Test Theory in Mathematics. Unpublished Ph.D. Thesis, Delta State University, Abraka, Nigeria.
[2] Scott N.W. & Fayers M.P. (2010) Differential Item Functioning (DIF) analyses of health-related quality of life instruments using logistic regression. Health and Quality of Life Outcomes, 8(1), 81.
[3] Scott N.W., Fayers M.P., Aaronson K.N., Bottomley A., de Graeff A., Groenvold M. (2014). Interpretation of differential item functioning analysis using external review. Expert Review of Pharmacoeconomics & Outcome Research, 10(3), 253-258.
[4] Wechsler D. (2012). Wechsler Preschool and Primary Scales of Intelligence (4th edition) (WPPSI-IV). San Antonio, TX: Psychological Corporation. 079/10.1007/978-94-007-0753-6_758
[5] Kamata, A., & Vaughn, B. K. (2004). An introduction to differential item functioning analysis. Learning Disabilities: A Contemporary Journal, 2, 49-69.
[6] Ohiri, C. S., Christopher, O. M., & Benedict, C. I. (2024). International Journal of Research Publication and Reviews, 5.2, 1555-1564. An item presenting Uniform DIF/Download Scientific Diagram!
[7] Maller, S. (2001). Differential item functioning in the WISC-III: Item parameters for boys and girls in the national standardization sample. Educational and Psychological Measurement, 61.5, 793-817.
How to cite this paper
@article{1708550,
author = {Adepoju, Olufemi Adetunji, DAUDA, Isiaka Kayode, Lawal, Abduljaleel Kola},
title = {Differential Item Functioning (DIF) Of The Wechsler Preschool and Primary Scale of Intelligence Administered On Nigerian Children},
journal = {Iconic Research And Engineering Journals},
year = {2025},
volume = {8},
number = {11},
pages = {1511-1520},
issn = {2456-8880},
url = {https://www.irejournals.com/formatedpaper/1708550.pdf},
abstract = {Differential Item Functioning (DIF) has been severally studied by psychologists to measure testees performance on test items based on their differences. This paper therefore investigated the Differential Item Functioning (DIF) of testees (pupils) age 7 approximately in the Wechsler Preschool and Primary Scale of Intelligence (WPPSI-IV). Sample was drawn from the population. The sample size of pupils was 512 cut across three ethnic tribes. WPPSI-IV while IRT software (R) was used for data analysis. Findings from the study showed that 145 items function differently, while 125 items did not show bias. It was recommended that testees' interests, beliefs etc. should be taken into consideration during test construction so as to place the children on equal level playground and that the preschool curriculum should be modified to take care of the differences in testees.},
month = {May},
}