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Educational Assessment, Evaluation, and Research

REID (Research and Evaluation in Education)

2021

Difficulty index

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The Characteristics Of Chemistry Test Items On Nationally-Standardized School Examination In Yogyakarta City, Ummul Karimah, Heri Retnawati, Deni Hadiana, Pujiastuti Pujiastuti, Eri Yusron Dec 2021

The Characteristics Of Chemistry Test Items On Nationally-Standardized School Examination In Yogyakarta City, Ummul Karimah, Heri Retnawati, Deni Hadiana, Pujiastuti Pujiastuti, Eri Yusron

REID (Research and Evaluation in Education)

This study aimed to describe the characteristics of chemistry test items in Nationally Standardized School Examination or Ujian Sekolah Berstandar Nasional (USBN), consisted of discrimination index, difficulty index, and question reliability. The data were collected by using documentation of the answers of 194 students. The type of research was descriptive exploratory with quantitative and qualitative approaches. Quantitative data analysis was performed by using the classical test theory approach and item response theory with 1 logistical parameter. Meanwhile, qualitative data analysis was conducted to describe the items categorized as difficult and bad categories. The results show that, according to classical test …