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Dergiler / International Journal of Assessment Tools in Education / 2022 / Cilt: 9 - Sayı: 3

To what extent are item discrimination values realistic? A new index for two-dimensional structures

Abdullah Faruk KILIÇ
İbrahim UYSAL
Sayfa
728–740
Yayın Tarihi
2022-10-18
DOI
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

Accordingly, using this new item discrimination index could be recommended to researchers when investigating item discrimination in two-dimensional structures.

📌 3 Maddede Bu Makale

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Amaç & Hipotez:Most researchers investigate the corrected item-total correlation of items when analyzing item discrimination in multi-dimensional structures under the Classical Test Theory, which might lead to underestimating item discrimination, thereby removing items from the test.
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Temel Bulgular & Veri:Based upon the results of the study it can be claimed that the proposed item discrimination index proves acceptable performance for two-dimensional structures.
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Sonuç & Katkı:Accordingly, using this new item discrimination index could be recommended to researchers when investigating item discrimination in two-dimensional structures.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Item discrimination · Multi-dimensional structures · Classical test theory

Özet

Most researchers investigate the corrected item-total correlation of items when analyzing item discrimination in multi-dimensional structures under the Classical Test Theory, which might lead to underestimating item discrimination, thereby removing items from the test. Researchers might investigate the corrected item-total correlation with the factors to which that item belongs; however, getting a general overview of the entire test is impossible. Based on this problem, this study aims to recommend a new index to investigate item discrimination in two-dimensional structures through a Monte Carlo simulation. The new item discrimination index is evaluated by identifying sample size, item discrimination value, inter-factor correlation, and the number of categories. Based upon the results of the study it can be claimed that the proposed item discrimination index proves acceptable performance for two-dimensional structures. Accordingly, using this new item discrimination index could be recommended to researchers when investigating item discrimination in two-dimensional structures.

Abstract

Most researchers investigate the corrected item-total correlation of items when analyzing item discrimination in multi-dimensional structures under the Classical Test Theory, which might lead to underestimating item discrimination, thereby removing items from the test. Researchers might investigate the corrected item-total correlation with the factors to which that item belongs; however, getting a general overview of the entire test is impossible. Based on this problem, this study aims to recommend a new index to investigate item discrimination in two-dimensional structures through a Monte Carlo simulation. The new item discrimination index is evaluated by identifying sample size, item discrimination value, inter-factor correlation, and the number of categories. Based upon the results of the study it can be claimed that the proposed item discrimination index proves acceptable performance for two-dimensional structures. Accordingly, using this new item discrimination index could be recommended to researchers when investigating item discrimination in two-dimensional structures.

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Bu Makaleye Atıf Yap

KILIÇ, A. F., UYSAL, İ. (2022). To what extent are item discrimination values realistic? A new index for two-dimensional structures. International Journal of Assessment Tools in Education, Cilt: 9 - Sayı: 3, 728–740. https://ajindex.com/articles/540037

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Kaynakça (11)

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