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All Journal Jurnal Bidang Pendidikan Dasar Research in Social Sciences and Technology
Opesemowo, Oluwaseyi Aina Gbolade
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Education

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Intra and Inter-Local Item Dependence of Mathematics Items Opesemowo, Oluwaseyi Aina Gbolade
Research in Social Sciences and Technology Vol 8 No 4 (2023): Research in Social Sciences and Technology
Publisher : Research in Social Sciences and Technology- OpenED Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46303/ressat.2023.32

Abstract

Local Item Dependence (LID) is a desecration of Local Item Independence (LII) which can lead to overestimating or underestimating a candidate’s ability in mathematics items and create validity problems. The study investigated the intra and inter-LID of mathematics items. The study made use of ex-post facto research. The population encompassed all 26,086 Senior Secondary School Students three (SSS 3) in Osun State, Nigeria, and 14,936 SSS 3 students were randomly picked as the sample. National Examinations Council (NECO) mathematics items from June/July 2017 served as the research instrument. The calibrated data were subjected to Yen Q3 statistic. Using a multidimensional three-parameter logistic model, the Yen Q3 statistic is the residual correlation of the items calibrated by Jmetrik software. Results revealed that intra-LID was spotted between Item 8 and Item 7, Item 47 and Item 18, Item 28 and Item 21, Item 47 and Item 29, Item 39 and Item 38, Item 60 and Item 47, Item 52 and Item 51, Item 59 and Item 58 with a Q3 index greater than 0.2 rule of thumb. Similarly, inter-LID revealed bundles 3, 6, 7, 13, and 15 with a Yen Q3 index greater than 0.2. The study concluded that intra and inter-LID was discovered in the NECO mathematics item. It was recommended that NECO should consider intra and inter-LID to ensure more credible questions.
Analysis of differential item functioning in agricultural science examination across southwestern nigeria's senior schools Opesemowo, Oluwaseyi Aina Gbolade; Babatimihin, Temitope; Ogungbaigbe, Temitope Sarah
Jurnal Bidang Pendidikan Dasar Vol 8 No 2 (2024): June
Publisher : Universitas Kanjuruhan Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21067/jbpd.v8i2.10204

Abstract

Differential Item Functioning poses a threat to test fairness and validity in educational assessments. To this end, this study probes the incidence of DIF in the Senior School Certificate Agricultural Science Examination (SSCASE) across school locations in Southwestern Nigeria. It determined the magnitude of DIF using item parameters in SSCASE. The study applies one, two and three-parameter logistic models to analyze the dichotomous data responses of 818 randomly selected students from urban and rural locations. The ex-post facto design adopted the 2015 National Examination Council SSCE in Agricultural Science as its instrument (α =0.887) in this study. The study population comprised SSCE candidates from Osun, Ondo, and Oyo. The results showed the magnitude of DIF in SSCASE was large and moderate (1PLM=0.52 significant DIF, 2PLM=0.45 moderate DIF, 3PLM=0.47 moderate DIF) across school locations. The study concluded that 1, 2 and 3 PLMs can produce fair items in SSCASE.
Co-Authors Babatimihin, Temitope Ogungbaigbe, Temitope Sarah