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All Journal Register : Journal of English Language Teaching and Learning of FBS UNIMED Genre Journal: Journal of Applied Linguistics of FBS UNIMED
Maria Lumbantoruan
Universitas Negeri Medan
Humanities Education Languange, Linguistic, Communication & Media

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ITEM ANALYSIS OF ENGLISH SUMMATIVE TEST BASED ON ITEM RESPONSE THEORY (IRT) Maria Lumbantoruan; Indra Hartoyo
REGISTER: Journal of English Language Teaching of FBS-Unimed Vol 11, No 3 (2022)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/reg.v11i3.41185

Abstract

This study aims at finding out the indices of English summative test as well as describing the test quality based on the 3-PLM of IRT (Item Response Theory). A descriptive-quantitative design is applied by using Rstudio program to analyze the data. The findings show that there are three indices in evaluating English test based on the 3-PLM of IRT, they were item difficulty (b -parameter), item discrimination (a -parameter) and pseudo guessing (c -parameter). As much as 95 % (38 items) are in the good category of difficulty index and 5% (2 items) are in the poor category/very easy items. Then, as much as 30 % (12 items are in the good category and 70 % (28 items) in the poor category of the discrimination power. While referring to the guessing parameter, as much as 90 % (36 items) are in the good category and 10 % (4 items) are in the poor categoryKeywords: Item Analysis, Summative Test, IRT
ITEM ANALYSIS OF ENGLISH SUMMATIVE TEST BASED ON ITEM RESPONSE THEORY (IRT) Maria Lumbantoruan; Indra Hartoyo
GENRE JOURNAL : Journal of Applied Linguistics of FBS Unimed Vol 11, No 3 (2022)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (273.319 KB) | DOI: 10.24114/genre.v11i3.41748

Abstract

This study aims at finding out the indices of English summative test as well as describing the test quality based on the 3-PLM of IRT (Item Response Theory). A descriptive-quantitative design is applied by using Rstudio program to analyze the data. The findings show that there are three indices in evaluating English test based on the 3-PLM of IRT, they were item difficulty (b -parameter), item discrimination (a -parameter) and pseudo guessing (c -parameter). As much as 95 % (38 items) are in the good category of difficulty index and 5% (2 items) are in the poor category/very easy items. Then, as much as 30 % (12 items are in the good category and 70 % (28 items) in the poor category of the discrimination power. While referring to the guessing parameter, as much as 90 % (36 items) are in the good category and 10 % (4 items) are in the poor category.
Co-Authors Indra Hartoyo